diff --git a/frame/contracts/src/chain_extension.rs b/frame/contracts/src/chain_extension.rs
index 662cfb2053e6e..c664b82fe64cb 100644
--- a/frame/contracts/src/chain_extension.rs
+++ b/frame/contracts/src/chain_extension.rs
@@ -88,7 +88,7 @@ pub trait ChainExtension {
 	///
 	/// # Return
 	///
-	/// In case of `Err` the contract execution is immediatly suspended and the passed error
+	/// In case of `Err` the contract execution is immediately suspended and the passed error
 	/// is returned to the caller. Otherwise the value of [`RetVal`] determines the exit
 	/// behaviour.
 	fn call<E: Ext>(func_id: u32, env: Environment<E, InitState>) -> Result<RetVal>
diff --git a/frame/contracts/src/lib.rs b/frame/contracts/src/lib.rs
index d585ac4f7fab6..43566bc547c40 100644
--- a/frame/contracts/src/lib.rs
+++ b/frame/contracts/src/lib.rs
@@ -667,7 +667,7 @@ where
 	/// This function is similar to `Self::call`, but doesn't perform any address lookups and better
 	/// suitable for calling directly from Rust.
 	///
-	/// It returns the exection result and the amount of used weight.
+	/// It returns the execution result and the amount of used weight.
 	pub fn bare_call(
 		origin: T::AccountId,
 		dest: T::AccountId,
@@ -711,9 +711,9 @@ where
 
 	/// Determine the address of a contract,
 	///
-	/// This is the address generation function used by contract instantation. Its result
+	/// This is the address generation function used by contract instantiation. Its result
 	/// is only dependend on its inputs. It can therefore be used to reliably predict the
-	/// address of a contract. This is akin to the formular of eth's CRATE2 opcode. There
+	/// address of a contract. This is akin to the formular of eth's CREATE2 opcode. There
 	/// is no CREATE equivalent because CREATE2 is strictly more powerful.
 	///
 	/// Formula: `hash(deploying_address ++ code_hash ++ salt)`
diff --git a/frame/contracts/src/storage.rs b/frame/contracts/src/storage.rs
index 030f62fc4088e..5259b2a471265 100644
--- a/frame/contracts/src/storage.rs
+++ b/frame/contracts/src/storage.rs
@@ -178,7 +178,7 @@ where
 					deduct_block:
 						// We want to charge rent for the first block in advance. Therefore we
 						// treat the contract as if it was created in the last block and then
-						// charge rent for it during instantation.
+						// charge rent for it during instantiation.
 						<frame_system::Module<T>>::block_number().saturating_sub(1u32.into()),
 					rent_allowance: <BalanceOf<T>>::max_value(),
 					rent_payed: <BalanceOf<T>>::zero(),
diff --git a/frame/contracts/src/tests.rs b/frame/contracts/src/tests.rs
index 96bcf99bf8e81..a2916ff833b4e 100644
--- a/frame/contracts/src/tests.rs
+++ b/frame/contracts/src/tests.rs
@@ -549,7 +549,7 @@ fn deposit_event_max_value_limit() {
 			));
 			let addr = Contracts::contract_address(&ALICE, &code_hash, &[]);
 
-			// The instantation deducted the rent for one block immediatly
+			// The instantiation deducted the rent for one block immediately
 			let first_rent = <Test as Config>::RentFraction::get()
 				// base_deposit - free_balance
 				.mul_ceil(80_000 - 30_000)
@@ -812,7 +812,7 @@ fn deduct_blocks() {
 			let addr = Contracts::contract_address(&ALICE, &code_hash, &[]);
 			ContractInfoOf::<Test>::get(&addr).unwrap().get_alive().unwrap();
 
-			// The instantation deducted the rent for one block immediatly
+			// The instantiation deducted the rent for one block immediately
 			let rent0 = <Test as Config>::RentFraction::get()
 				// base_deposit + deploy_set_storage (4 bytes in 1 item) - free_balance
 				.mul_ceil(80_000 + 40_000 + 10_000 - 30_000)
@@ -1173,7 +1173,7 @@ fn default_rent_allowance_on_instantiate() {
 			));
 			let addr = Contracts::contract_address(&ALICE, &code_hash, &[]);
 
-			// The instantation deducted the rent for one block immediatly
+			// The instantiation deducted the rent for one block immediately
 			let first_rent = <Test as Config>::RentFraction::get()
 				// base_deposit - free_balance
 				.mul_ceil(80_000 - 30_000)
@@ -2501,7 +2501,7 @@ fn deletion_queue_full() {
 fn not_deployed_if_endowment_too_low_for_first_rent() {
 	let (wasm, code_hash) = compile_module::<Test>("set_rent").unwrap();
 
-	// The instantation deducted the rent for one block immediatly
+	// The instantiation deducted the rent for one block immediately
 	let first_rent = <Test as Config>::RentFraction::get()
 		// base_deposit + deploy_set_storage (4 bytes in 1 item) - free_balance
 		.mul_ceil(80_000u32 + 40_000 + 10_000 - 30_000)
@@ -2546,7 +2546,7 @@ fn surcharge_reward_is_capped() {
 		let balance = Balances::free_balance(&ALICE);
 		let reward = <Test as Config>::SurchargeReward::get();
 
-		// some rent should have payed due to instantation
+		// some rent should have payed due to instantiation
 		assert_ne!(contract.rent_payed, 0);
 
 		// the reward should be parameterized sufficiently high to make this test useful
diff --git a/primitives/state-machine/src/overlayed_changes/mod.rs b/primitives/state-machine/src/overlayed_changes/mod.rs
index b529c0ebfaeeb..285bf2a73a148 100644
--- a/primitives/state-machine/src/overlayed_changes/mod.rs
+++ b/primitives/state-machine/src/overlayed_changes/mod.rs
@@ -370,7 +370,7 @@ impl OverlayedChanges {
 	/// transaction was open. Any transaction must be closed by either `rollback_transaction` or
 	/// `commit_transaction` before this overlay can be converted into storage changes.
 	///
-	/// Changes made without any open transaction are committed immediatly.
+	/// Changes made without any open transaction are committed immediately.
 	pub fn start_transaction(&mut self) {
 		self.top.start_transaction();
 		for (_, (changeset, _)) in self.children.iter_mut() {