diff --git a/polkadot/README.md b/polkadot/README.md
index 584307726f..5281d40803 100644
--- a/polkadot/README.md
+++ b/polkadot/README.md
@@ -24,7 +24,7 @@ service that can be used to run a Polkadot node. This is disabled by default,
 and can be started by running `systemctl start polkadot` on demand (use
 `systemctl enable polkadot` to make it auto-start after reboot). By default, it
 will run as the `polkadot` user.  Command-line flags passed to the binary can
-be customised by editing `/etc/default/polkadot`. This file will not be
+be customized by editing `/etc/default/polkadot`. This file will not be
 overwritten on updating polkadot. You may also just run the node directly from
 the command-line.
 
diff --git a/polkadot/bridges/primitives/chain-kusama/src/lib.rs b/polkadot/bridges/primitives/chain-kusama/src/lib.rs
index 7163d15ef1..b221aff049 100644
--- a/polkadot/bridges/primitives/chain-kusama/src/lib.rs
+++ b/polkadot/bridges/primitives/chain-kusama/src/lib.rs
@@ -79,7 +79,7 @@ sp_api::decl_runtime_apis! {
 		///
 		/// Returns `None` if message is too expensive to be sent to Kusama from this chain.
 		///
-		/// Please keep in mind that this method returns lowest message fee required for message
+		/// Please keep in mind that this method returns the lowest message fee required for message
 		/// to be accepted to the lane. It may be good idea to pay a bit over this price to account
 		/// future exchange rate changes and guarantee that relayer would deliver your message
 		/// to the target chain.
@@ -109,7 +109,7 @@ sp_api::decl_runtime_apis! {
 	pub trait FromKusamaInboundLaneApi {
 		/// Returns nonce of the latest message, received by given lane.
 		fn latest_received_nonce(lane: LaneId) -> MessageNonce;
-		/// Nonce of latest message that has been confirmed to the bridged chain.
+		/// Nonce of the latest message that has been confirmed to the bridged chain.
 		fn latest_confirmed_nonce(lane: LaneId) -> MessageNonce;
 		/// State of the unrewarded relayers set at given lane.
 		fn unrewarded_relayers_state(lane: LaneId) -> UnrewardedRelayersState;
diff --git a/polkadot/bridges/primitives/chain-polkadot/src/lib.rs b/polkadot/bridges/primitives/chain-polkadot/src/lib.rs
index 8e0d30cdb6..8398b3d527 100644
--- a/polkadot/bridges/primitives/chain-polkadot/src/lib.rs
+++ b/polkadot/bridges/primitives/chain-polkadot/src/lib.rs
@@ -79,7 +79,7 @@ sp_api::decl_runtime_apis! {
 		///
 		/// Returns `None` if message is too expensive to be sent to Polkadot from this chain.
 		///
-		/// Please keep in mind that this method returns lowest message fee required for message
+		/// Please keep in mind that this method returns the lowest message fee required for message
 		/// to be accepted to the lane. It may be good idea to pay a bit over this price to account
 		/// future exchange rate changes and guarantee that relayer would deliver your message
 		/// to the target chain.
@@ -109,7 +109,7 @@ sp_api::decl_runtime_apis! {
 	pub trait FromPolkadotInboundLaneApi {
 		/// Returns nonce of the latest message, received by given lane.
 		fn latest_received_nonce(lane: LaneId) -> MessageNonce;
-		/// Nonce of latest message that has been confirmed to the bridged chain.
+		/// Nonce of the latest message that has been confirmed to the bridged chain.
 		fn latest_confirmed_nonce(lane: LaneId) -> MessageNonce;
 		/// State of the unrewarded relayers set at given lane.
 		fn unrewarded_relayers_state(lane: LaneId) -> UnrewardedRelayersState;
diff --git a/polkadot/bridges/primitives/chain-rococo/src/lib.rs b/polkadot/bridges/primitives/chain-rococo/src/lib.rs
index 66cbb475bd..f5953d3c8e 100644
--- a/polkadot/bridges/primitives/chain-rococo/src/lib.rs
+++ b/polkadot/bridges/primitives/chain-rococo/src/lib.rs
@@ -127,7 +127,7 @@ sp_api::decl_runtime_apis! {
 		///
 		/// Returns `None` if message is too expensive to be sent to Rococo from this chain.
 		///
-		/// Please keep in mind that this method returns lowest message fee required for message
+		/// Please keep in mind that this method returns the lowest message fee required for message
 		/// to be accepted to the lane. It may be good idea to pay a bit over this price to account
 		/// future exchange rate changes and guarantee that relayer would deliver your message
 		/// to the target chain.
@@ -157,7 +157,7 @@ sp_api::decl_runtime_apis! {
 	pub trait FromRococoInboundLaneApi {
 		/// Returns nonce of the latest message, received by given lane.
 		fn latest_received_nonce(lane: LaneId) -> MessageNonce;
-		/// Nonce of latest message that has been confirmed to the bridged chain.
+		/// Nonce of the latest message that has been confirmed to the bridged chain.
 		fn latest_confirmed_nonce(lane: LaneId) -> MessageNonce;
 		/// State of the unrewarded relayers set at given lane.
 		fn unrewarded_relayers_state(lane: LaneId) -> UnrewardedRelayersState;
diff --git a/polkadot/bridges/primitives/chain-westend/src/lib.rs b/polkadot/bridges/primitives/chain-westend/src/lib.rs
index db97364ef4..08ca9c28c8 100644
--- a/polkadot/bridges/primitives/chain-westend/src/lib.rs
+++ b/polkadot/bridges/primitives/chain-westend/src/lib.rs
@@ -141,7 +141,7 @@ sp_api::decl_runtime_apis! {
 		///
 		/// Returns `None` if message is too expensive to be sent to Westend from this chain.
 		///
-		/// Please keep in mind that this method returns lowest message fee required for message
+		/// Please keep in mind that this method returns the lowest message fee required for message
 		/// to be accepted to the lane. It may be good idea to pay a bit over this price to account
 		/// future exchange rate changes and guarantee that relayer would deliver your message
 		/// to the target chain.
@@ -171,7 +171,7 @@ sp_api::decl_runtime_apis! {
 	pub trait FromWestendInboundLaneApi {
 		/// Returns nonce of the latest message, received by given lane.
 		fn latest_received_nonce(lane: LaneId) -> MessageNonce;
-		/// Nonce of latest message that has been confirmed to the bridged chain.
+		/// Nonce of the latest message that has been confirmed to the bridged chain.
 		fn latest_confirmed_nonce(lane: LaneId) -> MessageNonce;
 		/// State of the unrewarded relayers set at given lane.
 		fn unrewarded_relayers_state(lane: LaneId) -> UnrewardedRelayersState;
diff --git a/polkadot/bridges/primitives/runtime/src/lib.rs b/polkadot/bridges/primitives/runtime/src/lib.rs
index aa457f1d0b..e12f484417 100644
--- a/polkadot/bridges/primitives/runtime/src/lib.rs
+++ b/polkadot/bridges/primitives/runtime/src/lib.rs
@@ -70,7 +70,7 @@ pub type InstanceId = [u8; 4];
 
 /// Type of accounts on the source chain.
 pub enum SourceAccount<T> {
-	/// An account that belongs to Root (priviledged origin).
+	/// An account that belongs to Root (privileged origin).
 	Root,
 	/// A non-priviledged account.
 	///
@@ -82,7 +82,7 @@ pub enum SourceAccount<T> {
 /// Derive an account ID from a foreign account ID.
 ///
 /// This function returns an encoded Blake2 hash. It is the responsibility of the caller to ensure
-/// this can be succesfully decoded into an AccountId.
+/// this can be successfully decoded into an AccountId.
 ///
 /// The `bridge_id` is used to provide extra entropy when producing account IDs. This helps prevent
 /// AccountId collisions between different bridges on a single target chain.
diff --git a/polkadot/node/core/pvf/src/artifacts.rs b/polkadot/node/core/pvf/src/artifacts.rs
index e84e11193d..7c8188a323 100644
--- a/polkadot/node/core/pvf/src/artifacts.rs
+++ b/polkadot/node/core/pvf/src/artifacts.rs
@@ -168,7 +168,7 @@ impl Artifacts {
 			.is_none());
 	}
 
-	/// Remove and retrive the artifacts from the table that are older than the supplied Time-To-Live.
+	/// Remove and retrieve the artifacts from the table that are older than the supplied Time-To-Live.
 	pub fn prune(&mut self, artifact_ttl: Duration) -> Vec<ArtifactId> {
 		let now = SystemTime::now();
 
diff --git a/polkadot/node/core/pvf/src/host.rs b/polkadot/node/core/pvf/src/host.rs
index d740622ea1..1777af3b4e 100644
--- a/polkadot/node/core/pvf/src/host.rs
+++ b/polkadot/node/core/pvf/src/host.rs
@@ -52,8 +52,8 @@ impl ValidationHost {
 	/// Execute PVF with the given code, params and priority. The result of execution will be sent
 	/// to the provided result sender.
 	///
-	/// This is async to accomodate the fact a possibility of back-pressure. In vast majority of
-	/// situations this function should return immediatelly.
+	/// This is async to accommodate the fact a possibility of back-pressure. In the vast majority of
+	/// situations this function should return immediately.
 	///
 	/// Returns an error if the request cannot be sent to the validation host, i.e. if it shut down.
 	pub async fn execute_pvf(
@@ -76,8 +76,8 @@ impl ValidationHost {
 
 	/// Sends a signal to the validation host requesting to prepare a list of the given PVFs.
 	///
-	/// This is async to accomodate the fact a possibility of back-pressure. In vast majority of
-	/// situations this function should return immediatelly.
+	/// This is async to accommodate the fact a possibility of back-pressure. In the vast majority of
+	/// situations this function should return immediately.
 	///
 	/// Returns an error if the request cannot be sent to the validation host, i.e. if it shut down.
 	pub async fn heads_up(&mut self, active_pvfs: Vec<Pvf>) -> Result<(), String> {
@@ -219,7 +219,7 @@ struct PendingExecutionRequest {
 	result_tx: ResultSender,
 }
 
-/// A mapping from an artifact ID which is in preparation state to the list of pending exeuction
+/// A mapping from an artifact ID which is in preparation state to the list of pending execution
 /// requests that should be executed once the artifact's prepration is finished.
 #[derive(Default)]
 struct AwaitingPrepare(HashMap<ArtifactId, Vec<PendingExecutionRequest>>);
diff --git a/polkadot/node/network/availability-distribution/src/error.rs b/polkadot/node/network/availability-distribution/src/error.rs
index 893bb6bc46..666e9a3776 100644
--- a/polkadot/node/network/availability-distribution/src/error.rs
+++ b/polkadot/node/network/availability-distribution/src/error.rs
@@ -68,7 +68,7 @@ pub enum Fatal {
 	Runtime(#[from] #[source] runtime::Fatal),
 }
 
-/// Non fatal errors of this subsystem.
+/// Non-fatal errors of this subsystem.
 #[derive(Debug, Error)]
 pub enum NonFatal {
 	/// av-store will drop the sender on any error that happens.
diff --git a/polkadot/node/network/availability-distribution/src/requester/fetch_task/mod.rs b/polkadot/node/network/availability-distribution/src/requester/fetch_task/mod.rs
index bdb51bdd2a..42f5554ae8 100644
--- a/polkadot/node/network/availability-distribution/src/requester/fetch_task/mod.rs
+++ b/polkadot/node/network/availability-distribution/src/requester/fetch_task/mod.rs
@@ -221,13 +221,13 @@ impl FetchTask {
 		}
 	}
 
-	/// Whether or not there are still relay parents around with this candidate pending
+	/// Whether there are still relay parents around with this candidate pending
 	/// availability.
 	pub fn is_live(&self) -> bool {
 		!self.live_in.is_empty()
 	}
 
-	/// Whether or not this task can be considered finished.
+	/// Whether this task can be considered finished.
 	///
 	/// That is, it is either canceled, succeeded or failed.
 	pub fn is_finished(&self) -> bool {
diff --git a/polkadot/node/network/availability-distribution/src/requester/mod.rs b/polkadot/node/network/availability-distribution/src/requester/mod.rs
index b91297987b..a13140f701 100644
--- a/polkadot/node/network/availability-distribution/src/requester/mod.rs
+++ b/polkadot/node/network/availability-distribution/src/requester/mod.rs
@@ -91,7 +91,7 @@ impl Requester {
 	}
 	/// Update heads that need availability distribution.
 	///
-	/// For all active heads we will be fetching our chunks for availabilty distribution.
+	/// For all active heads we will be fetching our chunks for availability distribution.
 	#[tracing::instrument(level = "trace", skip(self, ctx, runtime, update), fields(subsystem = LOG_TARGET))]
 	pub async fn update_fetching_heads<Context>(
 		&mut self,
diff --git a/polkadot/node/network/availability-distribution/src/tests/state.rs b/polkadot/node/network/availability-distribution/src/tests/state.rs
index 73fcd5f7ce..7364b7fb3f 100644
--- a/polkadot/node/network/availability-distribution/src/tests/state.rs
+++ b/polkadot/node/network/availability-distribution/src/tests/state.rs
@@ -68,7 +68,7 @@ pub struct TestState {
 	pub relay_chain: Vec<Hash>,
 	/// Whenever the subsystem tries to fetch an erasure chunk one item of the given vec will be
 	/// popped. So you can experiment with serving invalid chunks or no chunks on request and see
-	/// whether the subystem still succeds with its goal.
+	/// whether the subsystem still succeeds with its goal.
 	pub chunks: HashMap<(CandidateHash, ValidatorIndex), Vec<Option<ErasureChunk>>>,
 	/// All chunks that are valid and should be accepted.
 	pub valid_chunks: HashSet<(CandidateHash, ValidatorIndex)>,
diff --git a/polkadot/node/network/bitfield-distribution/src/lib.rs b/polkadot/node/network/bitfield-distribution/src/lib.rs
index 92c160cfc2..848eeb02bb 100644
--- a/polkadot/node/network/bitfield-distribution/src/lib.rs
+++ b/polkadot/node/network/bitfield-distribution/src/lib.rs
@@ -233,7 +233,7 @@ impl BitfieldDistribution {
 	}
 }
 
-/// Modify the reputation of a peer based on its behaviour.
+/// Modify the reputation of a peer based on its behavior.
 #[tracing::instrument(level = "trace", skip(ctx), fields(subsystem = LOG_TARGET))]
 async fn modify_reputation<Context>(
 	ctx: &mut Context,
@@ -560,7 +560,7 @@ where
 	}
 }
 
-/// Handle the changes necassary when our view changes.
+/// Handle the changes necessary when our view changes.
 #[tracing::instrument(level = "trace", fields(subsystem = LOG_TARGET))]
 fn handle_our_view_change(state: &mut ProtocolState, view: OurView) {
 	let old_view = std::mem::replace(&mut (state.view), view);
diff --git a/polkadot/node/network/bridge/src/lib.rs b/polkadot/node/network/bridge/src/lib.rs
index 400acba46d..48059c42be 100644
--- a/polkadot/node/network/bridge/src/lib.rs
+++ b/polkadot/node/network/bridge/src/lib.rs
@@ -317,7 +317,7 @@ impl<Net, AD, Context> Subsystem<Context> for NetworkBridge<Net, AD>
 }
 
 struct PeerData {
-	/// Latest view sent by the peer.
+	/// The Latest view sent by the peer.
 	view: View,
 }
 
diff --git a/polkadot/node/network/bridge/src/network.rs b/polkadot/node/network/bridge/src/network.rs
index 2f6fa8d1f5..8eda64a2c2 100644
--- a/polkadot/node/network/bridge/src/network.rs
+++ b/polkadot/node/network/bridge/src/network.rs
@@ -93,7 +93,7 @@ where
 
 /// An action to be carried out by the network.
 ///
-/// This type is used for implementing `Sink` in order to cummunicate asynchronously with the
+/// This type is used for implementing `Sink` in order to communicate asynchronously with the
 /// underlying network implementation in the `Network` trait.
 #[derive(Debug, PartialEq)]
 pub enum NetworkAction {
diff --git a/polkadot/node/network/collator-protocol/src/collator_side.rs b/polkadot/node/network/collator-protocol/src/collator_side.rs
index 5d17a358fc..69d26298fd 100644
--- a/polkadot/node/network/collator-protocol/src/collator_side.rs
+++ b/polkadot/node/network/collator-protocol/src/collator_side.rs
@@ -1048,7 +1048,7 @@ mod tests {
 
 		/// Generate a new relay parent and inform the subsystem about the new view.
 		///
-		/// If `merge_views == true` it means the subsystem will be informed that we working on the old `relay_parent`
+		/// If `merge_views == true` it means the subsystem will be informed that we are working on the old `relay_parent`
 		/// and the new one.
 		async fn advance_to_new_round(&mut self, virtual_overseer: &mut VirtualOverseer, merge_views: bool) {
 			let old_relay_parent = self.relay_parent;
@@ -1339,7 +1339,7 @@ mod tests {
 		);
 	}
 
-	/// Check that the next received message is a collation advertisment message.
+	/// Check that the next received message is a collation advertisement message.
 	async fn expect_advertise_collation_msg(
 		virtual_overseer: &mut VirtualOverseer,
 		peer: &PeerId,
diff --git a/polkadot/node/network/protocol/src/lib.rs b/polkadot/node/network/protocol/src/lib.rs
index 5f19a4af89..75e9a88052 100644
--- a/polkadot/node/network/protocol/src/lib.rs
+++ b/polkadot/node/network/protocol/src/lib.rs
@@ -324,14 +324,14 @@ pub mod v1 {
 		LargeStatement(StatementMetadata),
 	}
 
-	/// Data that maes a statement unique.
+	/// Data that makes a statement unique.
 	#[derive(Debug, Clone, Encode, Decode, PartialEq, Eq, Hash)]
 	pub struct StatementMetadata {
-		/// Relayt parent this statement is relevant under.
+		/// Relay parent this statement is relevant under.
 		pub relay_parent: Hash,
 		/// Hash of the candidate that got validated.
 		pub candidate_hash: CandidateHash,
-		/// Validator that attested the valididty.
+		/// Validator that attested the validity.
 		pub signed_by: ValidatorIndex,
 		/// Signature of seconding validator.
 		pub signature: ValidatorSignature,
@@ -369,7 +369,7 @@ pub mod v1 {
 			}
 		}
 
-		/// Whether or not this message contains a large statement.
+		/// Whether this message contains a large statement.
 		pub fn is_large_statement(&self) -> bool {
 			if let Self::LargeStatement(_) = self {
 				true
diff --git a/polkadot/node/network/protocol/src/peer_set.rs b/polkadot/node/network/protocol/src/peer_set.rs
index 520567a5bd..e83019d5d3 100644
--- a/polkadot/node/network/protocol/src/peer_set.rs
+++ b/polkadot/node/network/protocol/src/peer_set.rs
@@ -30,7 +30,7 @@ pub enum PeerSet {
 	Collation,
 }
 
-/// Whether or not a node is an authority or not.
+/// Whether a node is an authority or not.
 ///
 /// Peer set configuration gets adjusted accordingly.
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
diff --git a/polkadot/node/network/protocol/src/request_response/request.rs b/polkadot/node/network/protocol/src/request_response/request.rs
index 69b86ff7f6..f8df5ee4a1 100644
--- a/polkadot/node/network/protocol/src/request_response/request.rs
+++ b/polkadot/node/network/protocol/src/request_response/request.rs
@@ -104,7 +104,7 @@ pub enum Recipient {
 /// discovery system.
 #[derive(Debug)]
 pub struct OutgoingRequest<Req> {
-	/// Intendent recipient of this request.
+	/// Intended recipient of this request.
 	pub peer: Recipient,
 	/// The actual request to send over the wire.
 	pub payload: Req,
diff --git a/polkadot/node/network/statement-distribution/src/error.rs b/polkadot/node/network/statement-distribution/src/error.rs
index 82e918dfd1..097b370999 100644
--- a/polkadot/node/network/statement-distribution/src/error.rs
+++ b/polkadot/node/network/statement-distribution/src/error.rs
@@ -28,7 +28,7 @@ use crate::LOG_TARGET;
 
 /// General result.
 pub type Result<T> = std::result::Result<T, Error>;
-/// Result for non fatal only failures.
+/// Result for non-fatal only failures.
 pub type NonFatalResult<T> = std::result::Result<T, NonFatal>;
 /// Result for fatal only failures.
 pub type FatalResult<T> = std::result::Result<T, Fatal>;
diff --git a/polkadot/node/network/statement-distribution/src/requester.rs b/polkadot/node/network/statement-distribution/src/requester.rs
index 2368da3cd2..f2430ed10d 100644
--- a/polkadot/node/network/statement-distribution/src/requester.rs
+++ b/polkadot/node/network/statement-distribution/src/requester.rs
@@ -39,7 +39,7 @@ const RETRY_TIMEOUT: Duration = Duration::from_millis(500);
 
 /// Messages coming from a background task.
 pub enum RequesterMessage {
-	/// Get an update of availble peers to try for fetching a given statement.
+	/// Get an update of available peers to try for fetching a given statement.
 	GetMorePeers {
 		relay_parent: Hash,
 		candidate_hash: CandidateHash,
@@ -69,7 +69,7 @@ pub enum RequesterMessage {
 /// A fetching task, taking care of fetching large statements via request/response.
 ///
 /// A fetch task does not know about a particular `Statement` instead it just tries fetching a
-/// `CommittedCandidateReceipt` from peers, whether or not this can be used to re-assemble one ore
+/// `CommittedCandidateReceipt` from peers, whether this can be used to re-assemble one ore
 /// many `SignedFullStatement`s needs to be verified by the caller.
 pub async fn fetch(
 	relay_parent: Hash,
diff --git a/polkadot/node/network/statement-distribution/src/responder.rs b/polkadot/node/network/statement-distribution/src/responder.rs
index 4f572446ab..da7e914edc 100644
--- a/polkadot/node/network/statement-distribution/src/responder.rs
+++ b/polkadot/node/network/statement-distribution/src/responder.rs
@@ -35,7 +35,7 @@ const COST_INVALID_REQUEST: Rep = Rep::CostMajor("Peer sent unparsable request")
 
 /// Messages coming from a background task.
 pub enum ResponderMessage {
-	/// Get an update of availble peers to try for fetching a given statement.
+	/// Get an update of available peers to try for fetching a given statement.
 	GetData {
 		requesting_peer: PeerId,
 		relay_parent: Hash,
@@ -48,7 +48,7 @@ pub enum ResponderMessage {
 /// A fetching task, taking care of fetching large statements via request/response.
 ///
 /// A fetch task does not know about a particular `Statement` instead it just tries fetching a
-/// `CommittedCandidateReceipt` from peers, whether or not this can be used to re-assemble one ore
+/// `CommittedCandidateReceipt` from peers, whether this can be used to re-assemble one ore
 /// many `SignedFullStatement`s needs to be verified by the caller.
 pub async fn respond(
 	mut receiver: mpsc::Receiver<sc_network::config::IncomingRequest>,
diff --git a/polkadot/node/primitives/src/lib.rs b/polkadot/node/primitives/src/lib.rs
index a59f6cd1e0..7646ca1ff2 100644
--- a/polkadot/node/primitives/src/lib.rs
+++ b/polkadot/node/primitives/src/lib.rs
@@ -51,7 +51,7 @@ pub const POV_BOMB_LIMIT: usize = MAX_POV_SIZE as usize;
 ///
 /// This is the committed candidate receipt instead of the bare candidate receipt. As such,
 /// it gives access to the commitments to validators who have not executed the candidate. This
-/// is necessary to allow a block-producing validator to include candidates from outside of the para
+/// is necessary to allow a block-producing validator to include candidates from outside the para
 /// it is assigned to.
 #[derive(Clone, PartialEq, Eq, Encode, Decode)]
 pub enum Statement {
@@ -202,7 +202,7 @@ pub struct CollationResult {
 	pub collation: Collation,
 	/// An optional result sender that should be informed about a successfully seconded collation.
 	///
-	/// There is no guarantee that this sender is informed ever about any result, it is completly okay to just drop it.
+	/// There is no guarantee that this sender is informed ever about any result, it is completely okay to just drop it.
 	/// However, if it is called, it should be called with the signed statement of a parachain validator seconding the
 	/// collation.
 	pub result_sender: Option<futures::channel::oneshot::Sender<SignedFullStatement>>,
diff --git a/polkadot/node/service/src/chain_spec.rs b/polkadot/node/service/src/chain_spec.rs
index 278724746b..5458b9bcfa 100644
--- a/polkadot/node/service/src/chain_spec.rs
+++ b/polkadot/node/service/src/chain_spec.rs
@@ -59,16 +59,16 @@ pub struct Extensions {
 	pub bad_blocks: sc_client_api::BadBlocks<polkadot_primitives::v1::Block>,
 }
 
-/// The `ChainSpec` parametrised for the polkadot runtime.
+/// The `ChainSpec` parameterized for the polkadot runtime.
 pub type PolkadotChainSpec = service::GenericChainSpec<polkadot::GenesisConfig, Extensions>;
 
-/// The `ChainSpec` parametrised for the kusama runtime.
+/// The `ChainSpec` parameterized for the kusama runtime.
 pub type KusamaChainSpec = service::GenericChainSpec<kusama::GenesisConfig, Extensions>;
 
-/// The `ChainSpec` parametrised for the westend runtime.
+/// The `ChainSpec` parameterized for the westend runtime.
 pub type WestendChainSpec = service::GenericChainSpec<westend::GenesisConfig, Extensions>;
 
-/// The `ChainSpec` parametrized for the rococo runtime.
+/// The `ChainSpec` parameterized for the rococo runtime.
 pub type RococoChainSpec = service::GenericChainSpec<RococoGenesisExt, Extensions>;
 
 /// Extension for the Rococo genesis config to support a custom changes to the genesis state.
diff --git a/polkadot/node/subsystem-util/src/error_handling.rs b/polkadot/node/subsystem-util/src/error_handling.rs
index b2040e53ab..36e59bb7b2 100644
--- a/polkadot/node/subsystem-util/src/error_handling.rs
+++ b/polkadot/node/subsystem-util/src/error_handling.rs
@@ -20,8 +20,8 @@
 //!
 //! - Ergonomic API with little repetition.
 //! - Still explicitness where it matters - fatal errors should be visible and justified.
-//! - Easy recovering from non fatal errors.
-//! - Errors start as non fatal and can be made fatal at the level where it is really clear they
+//! - Easy recovering from non-fatal errors.
+//! - Errors start as non-fatal and can be made fatal at the level where it is really clear they
 //!	  are fatal. E.g. cancellation of a oneshot might be fatal in one case, but absolutely expected
 //!	  in another.
 //! - Good error messages. Fatal errors don't need to be properly structured (as we won't handle
@@ -37,7 +37,7 @@ use thiserror::Error;
 /// Errors might either be fatal and should bring the subsystem down or are at least at the point
 /// of occurrence deemed potentially recoverable.
 ///
-/// Upper layers might have a better view and might make a non fatal error of a called function a
+/// Upper layers might have a better view and might make a non-fatal error of a called function a
 /// fatal one. The opposite should not happen, therefore don't make an error fatal if you don't
 /// know it is in all cases.
 ///
@@ -102,7 +102,7 @@ use thiserror::Error;
 /// }
 /// ```
 /// Then mostly use `Error` in functions, you may also use `NonFatal` and `Fatal` directly in
-/// functions that strictly only fail non fatal or fatal respectively, as `Fatal` and `NonFatal`
+/// functions that strictly only fail non-fatal or fatal respectively, as `Fatal` and `NonFatal`
 /// can automatically converted into the above defined `Error`.
 /// ```
 #[derive(Debug, Error)]
@@ -135,7 +135,7 @@ impl<E, F> Fault<E, F>
 		Self::Fatal(f.into())
 	}
 
-	/// Build an `Fault` from compatible non fatal error.
+	/// Build an `Fault` from compatible non-fatal error.
 	pub fn from_non_fatal<E1: Into<E>>(e: E1) -> Self {
 		Self::Err(e.into())
 	}
@@ -153,10 +153,10 @@ impl<E, F> Fault<E, F>
 	}
 }
 
-/// Unwrap non fatal error and report fatal one.
+/// Unwrap non-fatal error and report fatal one.
 ///
 /// This function is useful for top level error handling. Fatal errors will be extracted,
-/// non fatal error will be returned for handling.
+/// non-fatal error will be returned for handling.
 ///
 /// Usage:
 ///
diff --git a/polkadot/node/subsystem-util/src/runtime/mod.rs b/polkadot/node/subsystem-util/src/runtime/mod.rs
index f07db07630..5b2180f6d2 100644
--- a/polkadot/node/subsystem-util/src/runtime/mod.rs
+++ b/polkadot/node/subsystem-util/src/runtime/mod.rs
@@ -63,7 +63,7 @@ pub struct ExtendedSessionInfo {
 	pub validator_info: ValidatorInfo,
 }
 
-/// Information about ourself, in case we are an `Authority`.
+/// Information about ourselves, in case we are an `Authority`.
 ///
 /// This data is derived from the `SessionInfo` and our key as found in the keystore.
 pub struct ValidatorInfo {
diff --git a/polkadot/node/subsystem/src/lib.rs b/polkadot/node/subsystem/src/lib.rs
index 3cc4894a49..7cc21beeb9 100644
--- a/polkadot/node/subsystem/src/lib.rs
+++ b/polkadot/node/subsystem/src/lib.rs
@@ -181,7 +181,7 @@ pub enum SubsystemError {
 	/// Per origin (or subsystem) annotations to wrap an error.
 	#[error("Error originated in {origin}")]
 	FromOrigin {
-		/// An additional anotation tag for the origin of `source`.
+		/// An additional annotation tag for the origin of `source`.
 		origin: &'static str,
 		/// The wrapped error. Marked as source for tracking the error chain.
 		#[source] source: Box<dyn 'static + std::error::Error + Send + Sync>
diff --git a/polkadot/node/subsystem/src/messages/network_bridge_event.rs b/polkadot/node/subsystem/src/messages/network_bridge_event.rs
index c0a58ada77..8d7c237985 100644
--- a/polkadot/node/subsystem/src/messages/network_bridge_event.rs
+++ b/polkadot/node/subsystem/src/messages/network_bridge_event.rs
@@ -45,7 +45,7 @@ impl<M> NetworkBridgeEvent<M> {
 	///
 	/// This tries to transform M in `PeerMessage` to a message type specific to a subsystem.
 	/// It is used to dispatch events coming from a peer set to the various subsystems that are
-	/// handled within that peer set. More concretly a `ValidationProtocol` will be transformed
+	/// handled within that peer set. More concretely a `ValidationProtocol` will be transformed
 	/// for example into a `BitfieldDistributionMessage` in case of the `BitfieldDistribution`
 	/// constructor.
 	///
diff --git a/polkadot/node/test/service/src/chain_spec.rs b/polkadot/node/test/service/src/chain_spec.rs
index e0085fe173..6c0bdace85 100644
--- a/polkadot/node/test/service/src/chain_spec.rs
+++ b/polkadot/node/test/service/src/chain_spec.rs
@@ -29,7 +29,7 @@ use sp_runtime::Perbill;
 
 const DEFAULT_PROTOCOL_ID: &str = "dot";
 
-/// The `ChainSpec` parametrized for polkadot test runtime.
+/// The `ChainSpec` parameterized for polkadot test runtime.
 pub type PolkadotChainSpec =
 	service::GenericChainSpec<polkadot_test_runtime::GenesisConfig, Extensions>;
 
diff --git a/polkadot/node/test/service/src/lib.rs b/polkadot/node/test/service/src/lib.rs
index 4104a53cdd..e09d9adc4b 100644
--- a/polkadot/node/test/service/src/lib.rs
+++ b/polkadot/node/test/service/src/lib.rs
@@ -104,7 +104,7 @@ impl ClientHandle for TestClient {
 /// nodes if you want the future node to be connected to other nodes.
 ///
 /// The `storage_update_func` function will be executed in an externalities provided environment
-/// and can be used to make adjustements to the runtime genesis storage.
+/// and can be used to make adjustments to the runtime genesis storage.
 pub fn node_config(
 	storage_update_func: impl Fn(),
 	task_executor: TaskExecutor,
@@ -210,7 +210,7 @@ pub fn node_config(
 /// want it to be connected to other nodes.
 ///
 /// The `storage_update_func` function will be executed in an externalities provided environment
-/// and can be used to make adjustements to the runtime genesis storage.
+/// and can be used to make adjustments to the runtime genesis storage.
 pub fn run_validator_node(
 	task_executor: TaskExecutor,
 	key: Sr25519Keyring,
@@ -242,11 +242,11 @@ pub fn run_validator_node(
 /// want it to be connected to other nodes.
 ///
 /// The `storage_update_func` function will be executed in an externalities provided environment
-/// and can be used to make adjustements to the runtime genesis storage.
+/// and can be used to make adjustments to the runtime genesis storage.
 ///
 /// # Note
 ///
-/// The collator functionionality still needs to be registered at the node! This can be done using
+/// The collator functionality still needs to be registered at the node! This can be done using
 /// [`PolkadotTestNode::register_collator`].
 pub fn run_collator_node(
 	task_executor: TaskExecutor,
diff --git a/polkadot/primitives/src/v0.rs b/polkadot/primitives/src/v0.rs
index dc3c8dceb7..ab7c3fe18b 100644
--- a/polkadot/primitives/src/v0.rs
+++ b/polkadot/primitives/src/v0.rs
@@ -184,7 +184,7 @@ pub const PARACHAIN_INFO: Info = Info {
 	scheduling: Scheduling::Always,
 };
 
-/// Auxilliary for when there's an attempt to swap two parachains/parathreads.
+/// Auxiliary for when there's an attempt to swap two parachains/parathreads.
 pub trait SwapAux {
 	/// Result describing whether it is possible to swap two parachains. Doesn't mutate state.
 	fn ensure_can_swap(one: Id, other: Id) -> Result<(), &'static str>;
@@ -435,7 +435,7 @@ pub struct AbridgedCandidateReceipt<H = Hash> {
 
 /// A candidate-receipt with commitments directly included.
 pub struct CommitedCandidateReceipt<H = Hash> {
-	/// The descriptor of the candidae.
+	/// The descriptor of the candidate.
 	pub descriptor: CandidateDescriptor,
 
 	/// The commitments of the candidate receipt.
diff --git a/polkadot/primitives/src/v1/mod.rs b/polkadot/primitives/src/v1/mod.rs
index 48d6ad1e67..dc11e25fd5 100644
--- a/polkadot/primitives/src/v1/mod.rs
+++ b/polkadot/primitives/src/v1/mod.rs
@@ -181,7 +181,7 @@ pub const PARACHAINS_INHERENT_IDENTIFIER: InherentIdentifier = *b"parachn0";
 pub const ASSIGNMENT_KEY_TYPE_ID: KeyTypeId = KeyTypeId(*b"asgn");
 
 /// Maximum compressed code size we support right now.
-/// At the moment we have runtime upgrade on chain, which restricts scalability severly. If we want
+/// At the moment we have runtime upgrade on chain, which restricts scalability severely. If we want
 /// to have bigger values, we should fix that first.
 pub const MAX_CODE_SIZE: u32 = 3 * 1024 * 1024;
 
@@ -370,7 +370,7 @@ impl<H: Clone> CommittedCandidateReceipt<H> {
 		self.to_plain().hash()
 	}
 
-	/// Does this committed candidate receipt corrensponds to the given [`CandidateReceipt`]?
+	/// Does this committed candidate receipt corresponds to the given [`CandidateReceipt`]?
 	pub fn corresponds_to(&self, receipt: &CandidateReceipt<H>) -> bool where H: PartialEq {
 		receipt.descriptor == self.descriptor && receipt.commitments_hash == self.commitments.hash()
 	}
@@ -392,7 +392,7 @@ impl Ord for CommittedCandidateReceipt {
 }
 
 /// The validation data provides information about how to create the inputs for validation of a candidate.
-/// This information is derived from the chain state and will vary from para to para, although some of the
+/// This information is derived from the chain state and will vary from para to para, although some
 /// fields may be the same for every para.
 ///
 /// Since this data is used to form inputs to the validation function, it needs to be persisted by the
@@ -408,7 +408,7 @@ impl Ord for CommittedCandidateReceipt {
 /// already been done. As such, there is no need for the validation data used to inform validators and
 /// collators about the checks the relay-chain will perform to be persisted by the availability system.
 ///
-/// The `PersistedValidationData` should be relatively lightweight primarly because it is constructed
+/// The `PersistedValidationData` should be relatively lightweight primarily because it is constructed
 /// during inclusion for each candidate and therefore lies on the critical path of inclusion.
 #[derive(PartialEq, Eq, Clone, Encode, Decode)]
 #[cfg_attr(feature = "std", derive(Debug, Default, MallocSizeOf))]
@@ -1025,7 +1025,7 @@ pub enum ConsensusLog {
 	/// A parachain or parathread upgraded its code.
 	#[codec(index = 1)]
 	ParaUpgradeCode(Id, Hash),
-	/// A parachain or parathread scheduled a code ugprade.
+	/// A parachain or parathread scheduled a code upgrade.
 	#[codec(index = 2)]
 	ParaScheduleUpgradeCode(Id, Hash, BlockNumber),
 	/// Governance requests to auto-approve every candidate included up to the given block
diff --git a/polkadot/runtime/common/src/auctions.rs b/polkadot/runtime/common/src/auctions.rs
index 9c625bb62c..994ac8f4fc 100644
--- a/polkadot/runtime/common/src/auctions.rs
+++ b/polkadot/runtime/common/src/auctions.rs
@@ -122,7 +122,7 @@ pub mod pallet {
 		/// [bidder, range, parachain_id, amount]
 		WonDeploy(T::AccountId, SlotRange, ParaId, BalanceOf<T>),
 		/// An existing parachain won the right to continue.
-		/// First balance is the extra amount reseved. Second is the total amount reserved.
+		/// First balance is the extra amount reserved. Second is the total amount reserved.
 		/// [parachain_id, begin, count, total_amount]
 		WonRenewal(ParaId, LeasePeriodOf<T>, LeasePeriodOf<T>, BalanceOf<T>),
 		/// Funds were reserved for a winning bid. First balance is the extra amount reserved.
diff --git a/polkadot/runtime/common/src/claims.rs b/polkadot/runtime/common/src/claims.rs
index 31a937804f..5824a7f5c4 100644
--- a/polkadot/runtime/common/src/claims.rs
+++ b/polkadot/runtime/common/src/claims.rs
@@ -69,7 +69,7 @@ impl WeightInfo for TestWeightInfo {
 	fn move_claim() -> Weight { 0 }
 }
 
-/// The kind of a statement an account needs to make for a claim to be valid.
+/// The kind of statement an account needs to make for a claim to be valid.
 #[derive(Encode, Decode, Clone, Copy, Eq, PartialEq, RuntimeDebug)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum StatementKind {