diff --git a/.changeset/hungry-tips-unite.md b/.changeset/hungry-tips-unite.md
index b138fd409..0f2f0b64b 100644
--- a/.changeset/hungry-tips-unite.md
+++ b/.changeset/hungry-tips-unite.md
@@ -2,4 +2,4 @@
 'svelte': patch
 ---
 
-fix: port over props that were set prior to initialization
+fix: port over props that were set prior to initialisation
diff --git a/documentation/docs/02-template-syntax/01-svelte-components.md b/documentation/docs/02-template-syntax/01-svelte-components.md
index e79489144..e05a90a4c 100644
--- a/documentation/docs/02-template-syntax/01-svelte-components.md
+++ b/documentation/docs/02-template-syntax/01-svelte-components.md
@@ -212,7 +212,7 @@ If a statement consists entirely of an assignment to an undeclared variable, Sve
 
 A _store_ is an object that allows reactive access to a value via a simple _store contract_. The [`svelte/store` module](/docs/svelte-store) contains minimal store implementations which fulfil this contract.
 
-Any time you have a reference to a store, you can access its value inside a component by prefixing it with the `$` character. This causes Svelte to declare the prefixed variable, subscribe to the store at component initialization and unsubscribe when appropriate.
+Any time you have a reference to a store, you can access its value inside a component by prefixing it with the `$` character. This causes Svelte to declare the prefixed variable, subscribe to the store at component initialisation and unsubscribe when appropriate.
 
 Assignments to `$`-prefixed variables require that the variable be a writable store, and will result in a call to the store's `.set` method.
 
diff --git a/packages/svelte/CHANGELOG.md b/packages/svelte/CHANGELOG.md
index e65014006..f19f403a1 100644
--- a/packages/svelte/CHANGELOG.md
+++ b/packages/svelte/CHANGELOG.md
@@ -742,7 +742,7 @@
 
 - fix: allow `bind:this` with dynamic type on inputs ([#9713](https://github.com/sveltejs/svelte/pull/9713))
 
-- fix: port over props that were set prior to initialization ([#9704](https://github.com/sveltejs/svelte/pull/9704))
+- fix: port over props that were set prior to initialisation ([#9704](https://github.com/sveltejs/svelte/pull/9704))
 
 - feat: $inspect rune ([#9705](https://github.com/sveltejs/svelte/pull/9705))
 
diff --git a/packages/svelte/src/compiler/phases/1-parse/utils/fuzzymatch.js b/packages/svelte/src/compiler/phases/1-parse/utils/fuzzymatch.js
index 2a74bbd8c..cd72d7300 100644
--- a/packages/svelte/src/compiler/phases/1-parse/utils/fuzzymatch.js
+++ b/packages/svelte/src/compiler/phases/1-parse/utils/fuzzymatch.js
@@ -132,7 +132,7 @@ class FuzzySet {
 
 	/** @param {string[]} arr */
 	constructor(arr) {
-		// initialization
+		// initialisation
 		for (let i = GRAM_SIZE_LOWER; i < GRAM_SIZE_UPPER + 1; ++i) {
 			this.items[i] = [];
 		}
diff --git a/packages/svelte/src/internal/client/reactivity/sources.js b/packages/svelte/src/internal/client/reactivity/sources.js
index 60403ddc3..504ecb1ef 100644
--- a/packages/svelte/src/internal/client/reactivity/sources.js
+++ b/packages/svelte/src/internal/client/reactivity/sources.js
@@ -125,7 +125,7 @@ export function set(signal, value) {
 		// $effect(() => x++)
 		//
 		// We additionally want to skip this logic for when ignore_mutation_validation is
-		// true, as stores write to source signal on initialization.
+		// true, as stores write to source signal on initialisation.
 		if (
 			is_runes(null) &&
 			!ignore_mutation_validation &&