diff --git a/Source/WebCore/Modules/filesystemaccess/FileSystemHandleCloseScope.h b/Source/WebCore/Modules/filesystemaccess/FileSystemHandleCloseScope.h
index 5b0dfa1..f9272948 100644
--- a/Source/WebCore/Modules/filesystemaccess/FileSystemHandleCloseScope.h
+++ b/Source/WebCore/Modules/filesystemaccess/FileSystemHandleCloseScope.h
@@ -53,8 +53,8 @@
     }
 
 private:
-    FileSystemHandleCloseScope(FileSystemHandleIdentifier identifer, bool isDirectory, FileSystemStorageConnection& connection)
-        : m_identifier(identifer)
+    FileSystemHandleCloseScope(FileSystemHandleIdentifier identifier, bool isDirectory, FileSystemStorageConnection& connection)
+        : m_identifier(identifier)
         , m_isDirectory(isDirectory)
         , m_connection(Ref { connection })
     {
diff --git a/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm b/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm
index 1c5ee1b..b48b675 100644
--- a/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm
+++ b/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm
@@ -1528,7 +1528,7 @@
     #       return either bool or ExceptionOr<bool>.
     if (!$operation->name) {
         push(@$outputArray, "        using ReturnType = decltype($functionCall);\n");
-        push(@$outputArray, "        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, \"The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.\");\n");
+        push(@$outputArray, "        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, \"The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.\");\n");
     }
 
     push(@$outputArray, "        return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return $functionCall; });\n");
diff --git a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterNoIdentifier.cpp b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterNoIdentifier.cpp
index 41384ab..ab8831a 100644
--- a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterNoIdentifier.cpp
+++ b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterNoIdentifier.cpp
@@ -209,7 +209,7 @@
     auto& impl = thisObject.wrapped();
     if (isVisibleNamedProperty<LegacyOverrideBuiltIns::No>(*lexicalGlobalObject, thisObject, propertyName)) {
         using ReturnType = decltype(impl.deleteNamedProperty(propertyNameToString(propertyName)));
-        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.");
+        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.");
         return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return impl.deleteNamedProperty(propertyNameToString(propertyName)); });
     }
     return JSObject::deleteProperty(cell, lexicalGlobalObject, propertyName, slot);
@@ -223,7 +223,7 @@
     auto propertyName = Identifier::from(vm, index);
     if (isVisibleNamedProperty<LegacyOverrideBuiltIns::No>(*lexicalGlobalObject, thisObject, propertyName)) {
         using ReturnType = decltype(impl.deleteNamedProperty(propertyNameToString(propertyName)));
-        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.");
+        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.");
         return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return impl.deleteNamedProperty(propertyNameToString(propertyName)); });
     }
     return JSObject::deletePropertyByIndex(cell, lexicalGlobalObject, index);
diff --git a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterThrowingException.cpp b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterThrowingException.cpp
index 29fa9ee..0756cf3 100644
--- a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterThrowingException.cpp
+++ b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterThrowingException.cpp
@@ -209,7 +209,7 @@
     auto& impl = thisObject.wrapped();
     if (isVisibleNamedProperty<LegacyOverrideBuiltIns::No>(*lexicalGlobalObject, thisObject, propertyName)) {
         using ReturnType = decltype(impl.deleteNamedProperty(propertyNameToString(propertyName)));
-        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.");
+        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.");
         return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return impl.deleteNamedProperty(propertyNameToString(propertyName)); });
     }
     return JSObject::deleteProperty(cell, lexicalGlobalObject, propertyName, slot);
@@ -223,7 +223,7 @@
     auto propertyName = Identifier::from(vm, index);
     if (isVisibleNamedProperty<LegacyOverrideBuiltIns::No>(*lexicalGlobalObject, thisObject, propertyName)) {
         using ReturnType = decltype(impl.deleteNamedProperty(propertyNameToString(propertyName)));
-        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.");
+        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.");
         return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return impl.deleteNamedProperty(propertyNameToString(propertyName)); });
     }
     return JSObject::deletePropertyByIndex(cell, lexicalGlobalObject, index);
diff --git a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterWithIndexedGetter.cpp b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterWithIndexedGetter.cpp
index c6620c5..43ac03e 100644
--- a/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterWithIndexedGetter.cpp
+++ b/Source/WebCore/bindings/scripts/test/JS/JSTestNamedDeleterWithIndexedGetter.cpp
@@ -232,7 +232,7 @@
         return !impl.isSupportedPropertyIndex(index.value());
     if (isVisibleNamedProperty<LegacyOverrideBuiltIns::No>(*lexicalGlobalObject, thisObject, propertyName)) {
         using ReturnType = decltype(impl.deleteNamedProperty(propertyNameToString(propertyName)));
-        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifer must return either bool or ExceptionOr<bool>.");
+        static_assert(std::is_same_v<ReturnType, ExceptionOr<bool>> || std::is_same_v<ReturnType, bool>, "The implementation of named deleters without an identifier must return either bool or ExceptionOr<bool>.");
         return performLegacyPlatformObjectDeleteOperation(*lexicalGlobalObject, [&] { return impl.deleteNamedProperty(propertyNameToString(propertyName)); });
     }
     return JSObject::deleteProperty(cell, lexicalGlobalObject, propertyName, slot);
diff --git a/Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp b/Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp
index bf4f873..3358fe0 100644
--- a/Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp
+++ b/Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp
@@ -442,7 +442,7 @@
         return identifier ? m_remoteResourceCache.cachedImageBuffer({ *identifier, m_gpuConnectionToWebProcess->webProcessIdentifier() }) : nullptr;
     };
 
-    auto bufferIdentifer = [](ImageBuffer* buffer) -> std::optional<RenderingResourceIdentifier> {
+    auto bufferIdentifier = [](ImageBuffer* buffer) -> std::optional<RenderingResourceIdentifier> {
         if (!buffer)
             return std::nullopt;
         return buffer->renderingResourceIdentifier();
@@ -468,7 +468,7 @@
     if (frontBuffer && !needsFullDisplay && inputData.hasEmptyDirtyRegion) {
         // No swap necessary, but we do need to return the front buffer handle.
         outputData.frontBufferHandle = handleFromBuffer(*frontBuffer);
-        outputData.bufferSet = BufferIdentifierSet { bufferIdentifer(frontBuffer), bufferIdentifer(backBuffer), bufferIdentifer(secondaryBackBuffer) };
+        outputData.bufferSet = BufferIdentifierSet { bufferIdentifier(frontBuffer), bufferIdentifier(backBuffer), bufferIdentifier(secondaryBackBuffer) };
         outputData.displayRequirement = SwapBuffersDisplayRequirement::NeedsNoDisplay;
         return;
     }
@@ -488,7 +488,7 @@
 
     std::swap(frontBuffer, backBuffer);
 
-    outputData.bufferSet = BufferIdentifierSet { bufferIdentifer(frontBuffer), bufferIdentifer(backBuffer), bufferIdentifer(secondaryBackBuffer) };
+    outputData.bufferSet = BufferIdentifierSet { bufferIdentifier(frontBuffer), bufferIdentifier(backBuffer), bufferIdentifier(secondaryBackBuffer) };
     if (frontBuffer) {
         auto previousState = frontBuffer->setNonVolatile();
         if (previousState == SetNonVolatileResult::Empty)
diff --git a/Source/WebKit/Shared/ObjectIdentifierReferenceTracker.h b/Source/WebKit/Shared/ObjectIdentifierReferenceTracker.h
index 0268ce5..ae12fce 100644
--- a/Source/WebKit/Shared/ObjectIdentifierReferenceTracker.h
+++ b/Source/WebKit/Shared/ObjectIdentifierReferenceTracker.h
@@ -147,7 +147,7 @@
     uint64_t m_pendingReads { 0 };
 };
 
-// Class to generate read and write references to an ObjectIdentifer.
+// Class to generate read and write references to an ObjectIdentifier.
 template<typename T>
 class ObjectIdentifierReferenceTracker {
     WTF_MAKE_NONCOPYABLE(ObjectIdentifierReferenceTracker);
diff --git a/Source/WebKit/UIProcess/API/APIContentWorld.cpp b/Source/WebKit/UIProcess/API/APIContentWorld.cpp
index 7a518a3..7e59457 100644
--- a/Source/WebKit/UIProcess/API/APIContentWorld.cpp
+++ b/Source/WebKit/UIProcess/API/APIContentWorld.cpp
@@ -45,9 +45,9 @@
     return sharedMap;
 }
 
-ContentWorld* ContentWorld::worldForIdentifier(WebKit::ContentWorldIdentifier identifer)
+ContentWorld* ContentWorld::worldForIdentifier(WebKit::ContentWorldIdentifier identifier)
 {
-    return sharedWorldIdentifierMap().get(identifer);
+    return sharedWorldIdentifierMap().get(identifier);
 }
 
 ContentWorld::ContentWorld(const WTF::String& name)
diff --git a/Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp b/Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp
index b7432e0..1776978 100644
--- a/Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp
+++ b/Source/WebKit/WebProcess/GPU/graphics/RemoteRenderingBackendProxy.cpp
@@ -77,10 +77,10 @@
         m_gpuProcessConnection->addClient(*this);
 
         static constexpr auto connectionBufferSize = 1 << 21;
-        auto [streamConnection, dedicatedConnectionClientIdentifer] = IPC::StreamClientConnection::createWithDedicatedConnection(*this, connectionBufferSize);
+        auto [streamConnection, dedicatedConnectionClientIdentifier] = IPC::StreamClientConnection::createWithDedicatedConnection(*this, connectionBufferSize);
         m_streamConnection = WTFMove(streamConnection);
         m_streamConnection->open();
-        m_gpuProcessConnection->connection().send(Messages::GPUConnectionToWebProcess::CreateRenderingBackend(m_parameters, dedicatedConnectionClientIdentifer, m_streamConnection->streamBuffer()), 0, IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
+        m_gpuProcessConnection->connection().send(Messages::GPUConnectionToWebProcess::CreateRenderingBackend(m_parameters, dedicatedConnectionClientIdentifier, m_streamConnection->streamBuffer()), 0, IPC::SendOption::DispatchMessageEvenWhenWaitingForSyncReply);
     }
     return *m_gpuProcessConnection;
 }
diff --git a/Source/WebKit/WebProcess/Storage/WebSWContextManagerConnection.messages.in b/Source/WebKit/WebProcess/Storage/WebSWContextManagerConnection.messages.in
index 3955dd5..b35db6e 100644
--- a/Source/WebKit/WebProcess/Storage/WebSWContextManagerConnection.messages.in
+++ b/Source/WebKit/WebProcess/Storage/WebSWContextManagerConnection.messages.in
@@ -25,7 +25,7 @@
 messages -> WebSWContextManagerConnection {
     InstallServiceWorker(struct WebCore::ServiceWorkerContextData contextData, struct WebCore::ServiceWorkerData workerData, String userAgent, enum:bool WebCore::WorkerThreadMode workerThreadMode)
     UpdateAppInitiatedValue(WebCore::ServiceWorkerIdentifier serviceWorkerIdentifier, enum:bool WebCore::LastNavigationWasAppInitiated lastNavigationWasAppInitiated)
-    StartFetch(WebCore::SWServerConnectionIdentifier serverConnectionIdentifier, WebCore::ServiceWorkerIdentifier serviceWorkerIdentifier, WebCore::FetchIdentifier fetchIdentifier, WebCore::ResourceRequest request, struct WebCore::FetchOptions options, IPC::FormDataReference requestBody, String referrer, bool isServiceWorkerNavigationPreloadEnabled, String clientIdentifer, String resutlingClientIdentifier)
+    StartFetch(WebCore::SWServerConnectionIdentifier serverConnectionIdentifier, WebCore::ServiceWorkerIdentifier serviceWorkerIdentifier, WebCore::FetchIdentifier fetchIdentifier, WebCore::ResourceRequest request, struct WebCore::FetchOptions options, IPC::FormDataReference requestBody, String referrer, bool isServiceWorkerNavigationPreloadEnabled, String clientIdentifier, String resutlingClientIdentifier)
     CancelFetch(WebCore::SWServerConnectionIdentifier serverConnectionIdentifier, WebCore::ServiceWorkerIdentifier serviceWorkerIdentifier, WebCore::FetchIdentifier fetchIdentifier)
     ContinueDidReceiveFetchResponse(WebCore::SWServerConnectionIdentifier serverConnectionIdentifier, WebCore::ServiceWorkerIdentifier serviceWorkerIdentifier, WebCore::FetchIdentifier fetchIdentifier)
     PostMessageToServiceWorker(WebCore::ServiceWorkerIdentifier destinationIdentifier, struct WebCore::MessageWithMessagePorts message, WebCore::ServiceWorkerOrClientData sourceData)
diff --git a/Source/WebKit/webpushd/PushClientConnection.mm b/Source/WebKit/webpushd/PushClientConnection.mm
index 65e822c..767f6a5 100644
--- a/Source/WebKit/webpushd/PushClientConnection.mm
+++ b/Source/WebKit/webpushd/PushClientConnection.mm
@@ -134,11 +134,11 @@
 void ClientConnection::broadcastDebugMessage(StringView message)
 {
     String messageIdentifier;
-    auto signingIdentifer = hostAppCodeSigningIdentifier();
-    if (signingIdentifer.isEmpty())
+    auto signingIdentifier = hostAppCodeSigningIdentifier();
+    if (signingIdentifier.isEmpty())
         messageIdentifier = makeString("[(0x", hex(reinterpret_cast<uint64_t>(m_xpcConnection.get()), WTF::HexConversionMode::Lowercase), ") (", String::number(identifier()), " )] ");
     else
-        messageIdentifier = makeString("[", signingIdentifer, " (", String::number(identifier()), ")] ");
+        messageIdentifier = makeString("[", signingIdentifier, " (", String::number(identifier()), ")] ");
 
     Daemon::singleton().broadcastDebugMessage(makeString(messageIdentifier, message));
 }
diff --git a/Tools/MiniBrowser/mac/WK2BrowserWindowController.m b/Tools/MiniBrowser/mac/WK2BrowserWindowController.m
index 1a40565..7b1d1f8 100644
--- a/Tools/MiniBrowser/mac/WK2BrowserWindowController.m
+++ b/Tools/MiniBrowser/mac/WK2BrowserWindowController.m
@@ -555,9 +555,9 @@
 
 #if __MAC_OS_X_VERSION_MIN_REQUIRED >= 110000
     self.window.title = title;
-    pid_t gpuProcessIdentifer = _webView._gpuProcessIdentifier;
-    if (gpuProcessIdentifer)
-        self.window.subtitle = [NSString stringWithFormat:@"[WK2 wp %d gpup %d]%@%@", _webView._webProcessIdentifier, gpuProcessIdentifer, _isPrivateBrowsingWindow ? @" 🙈" : @"", _webView._editable ? @" ✏️" : @""];
+    pid_t gpuProcessIdentifier = _webView._gpuProcessIdentifier;
+    if (gpuProcessIdentifier)
+        self.window.subtitle = [NSString stringWithFormat:@"[WK2 wp %d gpup %d]%@%@", _webView._webProcessIdentifier, gpuProcessIdentifier, _isPrivateBrowsingWindow ? @" 🙈" : @"", _webView._editable ? @" ✏️" : @""];
     else
         self.window.subtitle = [NSString stringWithFormat:@"[WK2 %d]%@%@", _webView._webProcessIdentifier, _isPrivateBrowsingWindow ? @" 🙈" : @"", _webView._editable ? @" ✏️" : @""];
 #else
diff --git a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/__init__.py b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/__init__.py
index 463748d..53370be 100644
--- a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/__init__.py
+++ b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/__init__.py
@@ -59,7 +59,7 @@
 
     parser = argparse.ArgumentParser(
         description='Custom git tooling from the WebKit team to interact with a ' +
-                    'repository using identifers',
+                    'repository using identifiers',
     )
     arguments.LoggingGroup(
         parser,
diff --git a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/revert.py b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/revert.py
index 0a15378..ed903ef 100644
--- a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/revert.py
+++ b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/revert.py
@@ -48,7 +48,7 @@
         # Only allow revert one commit one time, because git automatically generate mesaage will only contain one commit information
         parser.add_argument(
             'commit',
-            help='git hash, svn revision or identifer you want to revert'
+            help='git hash, svn revision or identifier you want to revert'
         )
 
         parser.add_argument(
diff --git a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/squash.py b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/squash.py
index 45d8c83..852f11e 100644
--- a/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/squash.py
+++ b/Tools/Scripts/libraries/webkitscmpy/webkitscmpy/program/squash.py
@@ -61,7 +61,7 @@
         parser.add_argument(
             '--base-commit',
             dest='base_commit',
-            help='git hash, svn revision or identifer for the base commit that you want to squash to (merged commit will not include this commit)',
+            help='git hash, svn revision or identifier for the base commit that you want to squash to (merged commit will not include this commit)',
             default=None,
         )