diff --git a/dev/devicelab/lib/framework/adb.dart b/dev/devicelab/lib/framework/adb.dart
index ba7dd825bf..d9926c8309 100644
--- a/dev/devicelab/lib/framework/adb.dart
+++ b/dev/devicelab/lib/framework/adb.dart
@@ -83,7 +83,7 @@ abstract class DeviceDiscovery {
   /// returned. For such behavior see [workingDevice].
   Future<void> chooseWorkingDevice();
 
-  /// Select the device with ID strati with deviceId, return the device.
+  /// Selects a device to work with by device ID.
   Future<void> chooseWorkingDeviceById(String deviceId);
 
   /// A device to work with.
diff --git a/packages/flutter/lib/src/cupertino/refresh.dart b/packages/flutter/lib/src/cupertino/refresh.dart
index f656801458..347fa1001f 100644
--- a/packages/flutter/lib/src/cupertino/refresh.dart
+++ b/packages/flutter/lib/src/cupertino/refresh.dart
@@ -270,7 +270,7 @@ typedef RefreshCallback = Future<void> Function();
 /// {@tool dartpad --template=stateful_widget_material}
 ///
 /// When the user scrolls past [refreshTriggerPullDistance],
-/// this sample shows the default ios pull to refresh indicator for 1 second and
+/// this sample shows the default iOS pull to refresh indicator for 1 second and
 /// adds a new item to the top of the list view.
 ///
 /// ```dart imports
diff --git a/packages/flutter/lib/src/cupertino/search_field.dart b/packages/flutter/lib/src/cupertino/search_field.dart
index 00484451d1..4b793aa879 100644
--- a/packages/flutter/lib/src/cupertino/search_field.dart
+++ b/packages/flutter/lib/src/cupertino/search_field.dart
@@ -76,7 +76,7 @@ import 'text_field.dart';
 /// ```
 /// {@end-tool}
 class CupertinoSearchTextField extends StatefulWidget {
-  /// Creates a [CupertinoTextField] that mimicks the look and behavior of
+  /// Creates a [CupertinoTextField] that mimics the look and behavior of
   /// UIKit's `UISearchTextField`.
   ///
   /// Similar to [CupertinoTextField], to provide a prefilled text entry, pass
diff --git a/packages/flutter/lib/src/gestures/events.dart b/packages/flutter/lib/src/gestures/events.dart
index 9170cb173b..0130b343f9 100644
--- a/packages/flutter/lib/src/gestures/events.dart
+++ b/packages/flutter/lib/src/gestures/events.dart
@@ -2111,7 +2111,7 @@ class PointerCancelEvent extends PointerEvent with _PointerEventDescription, _Co
   }
 }
 
-/// Determine the approriate hit slop pixels based on the [kind] of pointer.
+/// Determine the appropriate hit slop pixels based on the [kind] of pointer.
 double computeHitSlop(PointerDeviceKind kind) {
   switch (kind) {
     case PointerDeviceKind.mouse:
@@ -2124,7 +2124,7 @@ double computeHitSlop(PointerDeviceKind kind) {
   }
 }
 
-/// Determine the approriate pan slop pixels based on the [kind] of pointer.
+/// Determine the appropriate pan slop pixels based on the [kind] of pointer.
 double computePanSlop(PointerDeviceKind kind) {
   switch (kind) {
     case PointerDeviceKind.mouse:
@@ -2137,7 +2137,7 @@ double computePanSlop(PointerDeviceKind kind) {
   }
 }
 
-/// Determine the approriate scale slop pixels based on the [kind] of pointer.
+/// Determine the appropriate scale slop pixels based on the [kind] of pointer.
 double computeScaleSlop(PointerDeviceKind kind) {
   switch (kind) {
     case PointerDeviceKind.mouse:
diff --git a/packages/flutter/lib/src/gestures/velocity_tracker.dart b/packages/flutter/lib/src/gestures/velocity_tracker.dart
index 6739fff725..a56efbfa07 100644
--- a/packages/flutter/lib/src/gestures/velocity_tracker.dart
+++ b/packages/flutter/lib/src/gestures/velocity_tracker.dart
@@ -279,7 +279,7 @@ class VelocityTracker {
 /// estimating the velocity are both cheap.
 ///
 /// To obtain a velocity, call [getVelocity] or [getVelocityEstimate]. The
-/// esimated velocity is typically used as the initial flinging velocity of a
+/// estimated velocity is typically used as the initial flinging velocity of a
 /// `Scrollable`, when its drag gesture ends.
 ///
 /// See also:
diff --git a/packages/flutter/lib/src/material/about.dart b/packages/flutter/lib/src/material/about.dart
index 3a705d4c21..e2617bb816 100644
--- a/packages/flutter/lib/src/material/about.dart
+++ b/packages/flutter/lib/src/material/about.dart
@@ -753,7 +753,7 @@ class _LicenseData {
     licenses.add(entry); // Completion of the contract above.
   }
 
-  /// Add a package and initialise package license binding. This is a no-op if
+  /// Add a package and initialize package license binding. This is a no-op if
   /// the package has been seen before.
   void _addPackage(String package) {
     if (!packageLicenseBindings.containsKey(package)) {
@@ -1151,7 +1151,7 @@ class _MasterDetailFlow extends StatefulWidget {
   /// See [AppBar.automaticallyImplyLeading].
   final bool automaticallyImplyLeading;
 
-  /// Override the framework from determining whether to display the title in the centre of the
+  /// Override the framework from determining whether to display the title in the center of the
   /// app bar or not.
   ///
   /// See [AppBar.centerTitle].
@@ -1246,7 +1246,7 @@ abstract class _PageOpener {
 const int _materialWideDisplayThreshold = 840;
 
 class _MasterDetailFlowState extends State<_MasterDetailFlow> implements _PageOpener {
-  /// Tracks whether focus is on the detail or master views. Determines behaviour when switching
+  /// Tracks whether focus is on the detail or master views. Determines behavior when switching
   /// from lateral to nested navigation.
   _Focus focus = _Focus.master;
 
diff --git a/packages/flutter/lib/src/material/button_style.dart b/packages/flutter/lib/src/material/button_style.dart
index a97b23f163..1d3de0b6be 100644
--- a/packages/flutter/lib/src/material/button_style.dart
+++ b/packages/flutter/lib/src/material/button_style.dart
@@ -14,8 +14,8 @@ import 'theme_data.dart';
 /// The visual properties that most buttons have in common.
 ///
 /// Buttons and their themes have a ButtonStyle property which defines the visual
-/// properties whose default values are to be overidden. The default values are
-/// defined by the invidual button widgets and are typically based on overall
+/// properties whose default values are to be overridden. The default values are
+/// defined by the individual button widgets and are typically based on overall
 /// theme's [ThemeData.colorScheme] and [ThemeData.textTheme].
 ///
 /// All of the ButtonStyle properties are null by default.
diff --git a/packages/flutter/lib/src/material/button_style_button.dart b/packages/flutter/lib/src/material/button_style_button.dart
index a90a5ee3b8..d2b0c22d48 100644
--- a/packages/flutter/lib/src/material/button_style_button.dart
+++ b/packages/flutter/lib/src/material/button_style_button.dart
@@ -87,9 +87,9 @@ abstract class ButtonStyleButton extends StatefulWidget {
   /// Returns a non-null [ButtonStyle] that's based primarily on the [Theme]'s
   /// [ThemeData.textTheme] and [ThemeData.colorScheme].
   ///
-  /// The returned style can be overriden by the [style] parameter and
+  /// The returned style can be overridden by the [style] parameter and
   /// by the style returned by [themeStyleOf]. For example the default
-  /// style of the [TextButton] subclass can be overidden with its
+  /// style of the [TextButton] subclass can be overridden with its
   /// [TextButton.style] constructor parameter, or with a
   /// [TextButtonTheme].
   ///
@@ -105,7 +105,7 @@ abstract class ButtonStyleButton extends StatefulWidget {
 
   /// Returns the ButtonStyle that belongs to the button's component theme.
   ///
-  /// The returned style can be overriden by the [style] parameter.
+  /// The returned style can be overridden by the [style] parameter.
   ///
   /// Concrete button subclasses should return the ButtonStyle for the
   /// nearest subclass-specific inherited theme, and if no such theme
diff --git a/packages/flutter/lib/src/material/floating_action_button.dart b/packages/flutter/lib/src/material/floating_action_button.dart
index a0ea567961..b70addb998 100644
--- a/packages/flutter/lib/src/material/floating_action_button.dart
+++ b/packages/flutter/lib/src/material/floating_action_button.dart
@@ -241,7 +241,7 @@ class FloatingActionButton extends StatelessWidget {
   /// is used.
   ///
   /// Although the color of theme's `accentIconTheme` currently provides a
-  /// default that supercedes the `onSecondary` color, this dependency
+  /// default that supersedes the `onSecondary` color, this dependency
   /// has been deprecated:  https://flutter.dev/go/remove-fab-accent-theme-dependency.
   /// It will be removed in the future.
   final Color? foregroundColor;
diff --git a/packages/flutter/lib/src/material/list_tile.dart b/packages/flutter/lib/src/material/list_tile.dart
index 935f7f22fd..23cb92bc95 100644
--- a/packages/flutter/lib/src/material/list_tile.dart
+++ b/packages/flutter/lib/src/material/list_tile.dart
@@ -378,7 +378,7 @@ enum ListTileControlAffinity {
 ///
 /// {@tool dartpad --template=stateless_widget_scaffold}
 ///
-/// Here is an example of a custom list item that resembles a Youtube related
+/// Here is an example of a custom list item that resembles a YouTube-related
 /// video list item created with [Expanded] and [Container] widgets.
 ///
 /// ![Custom list item a](https://flutter.github.io/assets-for-api-docs/assets/widgets/custom_list_item_a.png)
diff --git a/packages/flutter/lib/src/material/pickers/calendar_date_picker.dart b/packages/flutter/lib/src/material/pickers/calendar_date_picker.dart
index 102bc303a1..2db426c3a1 100644
--- a/packages/flutter/lib/src/material/pickers/calendar_date_picker.dart
+++ b/packages/flutter/lib/src/material/pickers/calendar_date_picker.dart
@@ -57,7 +57,7 @@ const double _monthNavButtonsWidth = 108.0;
 ///    time picker.
 ///
 class CalendarDatePicker extends StatefulWidget {
-  /// Creates a calender date picker.
+  /// Creates a calendar date picker.
   ///
   /// It will display a grid of days for the [initialDate]'s month. The day
   /// indicated by [initialDate] will be selected.
diff --git a/packages/flutter/lib/src/material/scaffold.dart b/packages/flutter/lib/src/material/scaffold.dart
index 1c40f5170e..8d6cafad5e 100644
--- a/packages/flutter/lib/src/material/scaffold.dart
+++ b/packages/flutter/lib/src/material/scaffold.dart
@@ -2237,7 +2237,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin {
 
   /// [ScaffoldMessengerState.removeCurrentSnackBar] removes the current
   /// [SnackBar] (if any) immediately. This method should not be used, and will
-  /// be depracted in the near future.
+  /// be deprecated in the near future.
   ///
   /// The removed snack bar does not run its normal exit animation. If there are
   /// any queued snack bars, they begin their entrance animation immediately.
diff --git a/packages/flutter/lib/src/painting/image_stream.dart b/packages/flutter/lib/src/painting/image_stream.dart
index 1b6a8a5e37..46c86c5a5b 100644
--- a/packages/flutter/lib/src/painting/image_stream.dart
+++ b/packages/flutter/lib/src/painting/image_stream.dart
@@ -58,7 +58,7 @@ class ImageInfo {
   ///
   /// This method is a convenience wrapper for [Image.isCloneOf], and is useful
   /// for clients that are trying to determine whether new layout or painting
-  /// logic is required when recieving a new image reference.
+  /// logic is required when receiving a new image reference.
   ///
   /// {@tool snippet}
   ///
@@ -109,7 +109,7 @@ class ImageInfo {
   /// (e.g. in the arguments given to [Canvas.drawImage]).
   final double scale;
 
-  /// A string used for debugging purpopses to identify the source of this image.
+  /// A string used for debugging purposes to identify the source of this image.
   final String? debugLabel;
 
   /// Disposes of this object.
diff --git a/packages/flutter/lib/src/rendering/editable.dart b/packages/flutter/lib/src/rendering/editable.dart
index 65fb041fad..aa492e2b3e 100644
--- a/packages/flutter/lib/src/rendering/editable.dart
+++ b/packages/flutter/lib/src/rendering/editable.dart
@@ -1144,7 +1144,7 @@ class RenderEditable extends RenderBox with RelayoutWhenSystemFontsChangeMixin {
   /// This can be null, in which case the getter will actually return [preferredLineHeight].
   ///
   /// Setting this to itself fixes the value to the current [preferredLineHeight]. Setting
-  /// this to null returns the behaviour of deferring to [preferredLineHeight].
+  /// this to null returns the behavior of deferring to [preferredLineHeight].
   // TODO(ianh): This is a confusing API. We should have a separate getter for the effective cursor height.
   double get cursorHeight => _cursorHeight ?? preferredLineHeight;
   double? _cursorHeight;
diff --git a/packages/flutter/lib/src/rendering/sliver_persistent_header.dart b/packages/flutter/lib/src/rendering/sliver_persistent_header.dart
index 4913b2ad8d..922b005af6 100644
--- a/packages/flutter/lib/src/rendering/sliver_persistent_header.dart
+++ b/packages/flutter/lib/src/rendering/sliver_persistent_header.dart
@@ -66,7 +66,7 @@ class PersistentHeaderShowOnScreenConfiguration {
   /// [RenderSliverPersistentHeader.minExtent].
   ///
   /// When a floating persistent header is told to show a [Rect] on screen, it
-  /// may expand itself to accomodate the [Rect]. The minimum extent that is
+  /// may expand itself to accommodate the [Rect]. The minimum extent that is
   /// allowed for such expansion is either
   /// [RenderSliverPersistentHeader.minExtent] or [minShowOnScreenExtent],
   /// whichever is larger. If the persistent header's current extent is already
@@ -86,7 +86,7 @@ class PersistentHeaderShowOnScreenConfiguration {
   /// [RenderSliverPersistentHeader.maxExtent].
   ///
   /// When a floating persistent header is told to show a [Rect] on screen, it
-  /// may expand itself to accomodate the [Rect]. The maximum extent that is
+  /// may expand itself to accommodate the [Rect]. The maximum extent that is
   /// allowed for such expansion is either
   /// [RenderSliverPersistentHeader.maxExtent] or [maxShowOnScreenExtent],
   /// whichever is smaller. If the persistent header's current extent is already
diff --git a/packages/flutter/lib/src/services/binding.dart b/packages/flutter/lib/src/services/binding.dart
index 961a99c168..a4a4aeca6b 100644
--- a/packages/flutter/lib/src/services/binding.dart
+++ b/packages/flutter/lib/src/services/binding.dart
@@ -222,7 +222,7 @@ mixin ServicesBinding on BindingBase, SchedulerBinding {
   /// Creates the [RestorationManager] instance available via
   /// [restorationManager].
   ///
-  /// Can be overriden in subclasses to create a different [RestorationManager].
+  /// Can be overridden in subclasses to create a different [RestorationManager].
   @protected
   RestorationManager createRestorationManager() {
     return RestorationManager();
diff --git a/packages/flutter/lib/src/services/restoration.dart b/packages/flutter/lib/src/services/restoration.dart
index 54d9a94531..a8e0bfe370 100644
--- a/packages/flutter/lib/src/services/restoration.dart
+++ b/packages/flutter/lib/src/services/restoration.dart
@@ -416,7 +416,7 @@ class RestorationManager extends ChangeNotifier {
 /// its current state changes, the data in the bucket must be updated. At the
 /// same time, the data in the bucket should be kept to a minimum. For example,
 /// for data that can be retrieved from other sources (like a database or
-/// webservice) only enough information (e.g. an ID or resource locator) to
+/// web service) only enough information (e.g. an ID or resource locator) to
 /// re-obtain that data should be stored in the bucket. In addition to managing
 /// the data in a bucket, an owner may also make the bucket available to other
 /// entities so they can claim child buckets from it via [claimChild] for their
diff --git a/packages/flutter/lib/src/services/text_formatter.dart b/packages/flutter/lib/src/services/text_formatter.dart
index 6eadddbc1f..1c508a0169 100644
--- a/packages/flutter/lib/src/services/text_formatter.dart
+++ b/packages/flutter/lib/src/services/text_formatter.dart
@@ -135,7 +135,7 @@ class FilteringTextInputFormatter extends TextInputFormatter {
 
   /// A [Pattern] to match and replace in incoming [TextEditingValue]s.
   ///
-  /// The behaviour of the pattern depends on the [allow] property. If
+  /// The behavior of the pattern depends on the [allow] property. If
   /// it is true, then this is an allow list, specifying a pattern that
   /// characters must match to be accepted. Otherwise, it is a deny list,
   /// specifying a pattern that characters must not match to be accepted.
diff --git a/packages/flutter/lib/src/widgets/basic.dart b/packages/flutter/lib/src/widgets/basic.dart
index 3c770863f1..aeac3e24af 100644
--- a/packages/flutter/lib/src/widgets/basic.dart
+++ b/packages/flutter/lib/src/widgets/basic.dart
@@ -5971,7 +5971,7 @@ class Listener extends SingleChildRenderObjectWidget {
 ///
 /// [MouseRegion] is used
 /// when it is needed to compare the list of objects that a mouse pointer is
-/// hovering over betweeen this frame and the last frame. This means entering
+/// hovering over between this frame and the last frame. This means entering
 /// events, exiting events, and mouse cursors.
 ///
 /// To listen to general pointer events, use [Listener], or more preferably,
@@ -7221,7 +7221,7 @@ class KeyedSubtree extends StatelessWidget {
 /// ```
 ///
 /// Could equally well be defined and used like this, without
-/// definining a new widget class:
+/// defining a new widget class:
 ///
 /// ```dart
 /// Center(
diff --git a/packages/flutter/lib/src/widgets/debug.dart b/packages/flutter/lib/src/widgets/debug.dart
index b27c399511..4487ce9fa7 100644
--- a/packages/flutter/lib/src/widgets/debug.dart
+++ b/packages/flutter/lib/src/widgets/debug.dart
@@ -252,7 +252,7 @@ bool debugCheckHasMediaQuery(BuildContext context) {
 ///  * why: explain why the direction is needed, for example "to resolve
 ///    the 'alignment' argument". Should be an adverb phrase describing why.
 ///  * hint: explain why this might be happening, for example "The default
-///    value of the 'aligment' argument of the $runtimeType widget is an
+///    value of the 'alignment' argument of the $runtimeType widget is an
 ///    AlignmentDirectional value.". Should be a fully punctuated sentence.
 ///  * alternative: provide additional advice specific to the situation,
 ///    especially an alternative to providing a Directionality ancestor.
diff --git a/packages/flutter/lib/src/widgets/editable_text.dart b/packages/flutter/lib/src/widgets/editable_text.dart
index 0d360644b8..fe57755283 100644
--- a/packages/flutter/lib/src/widgets/editable_text.dart
+++ b/packages/flutter/lib/src/widgets/editable_text.dart
@@ -1300,7 +1300,7 @@ class EditableText extends StatefulWidget {
   /// the surrounding [RestorationScope] using the provided restoration ID.
   ///
   /// Persisting and restoring the content of the [EditableText] is the
-  /// responsibilility of the owner of the [controller], who may use a
+  /// responsibility of the owner of the [controller], who may use a
   /// [RestorableTextEditingController] for that purpose.
   ///
   /// See also:
@@ -1911,7 +1911,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
   /// Begins a new batch edit, within which new updates made to the text editing
   /// value will not be sent to the platform text input plugin.
   ///
-  /// Batch edits nest. When the outmost batch edit finishes, [endBatchEdit]
+  /// Batch edits nest. When the outermost batch edit finishes, [endBatchEdit]
   /// will attempt to send [currentTextEditingValue] to the text input plugin if
   /// it detected a change.
   void beginBatchEdit() {
diff --git a/packages/flutter/lib/src/widgets/navigator.dart b/packages/flutter/lib/src/widgets/navigator.dart
index cf5e694de4..cc533fbea3 100644
--- a/packages/flutter/lib/src/widgets/navigator.dart
+++ b/packages/flutter/lib/src/widgets/navigator.dart
@@ -275,7 +275,7 @@ abstract class Route<T> {
   /// screen; instead, the larger scope is popped (e.g. the application quits,
   /// so that the user returns to the previous application).
   ///
-  /// In other cases, the default behaviour is to accept the pop
+  /// In other cases, the default behavior is to accept the pop
   /// ([RoutePopDisposition.pop]).
   ///
   /// The third possible value is [RoutePopDisposition.doNotPop], which causes
@@ -5444,7 +5444,7 @@ class _HistoryProperty extends RestorableProperty<Map<String?, List<Object>>?> {
 typedef NavigatorFinderCallback = NavigatorState Function(BuildContext context);
 
 /// A callback that given some `arguments` and a `navigator` adds a new
-/// restorable route to that `navigator` and resturns the opaque ID of that
+/// restorable route to that `navigator` and returns the opaque ID of that
 /// new route.
 ///
 /// Usually, this callback calls one of the imperative methods on the Navigator
@@ -5699,7 +5699,7 @@ class RestorableRouteFuture<T> extends RestorableProperty<String?> {
 
   /// Whether the [Route] created by [present] is currently shown.
   ///
-  /// Returns true after [present] has been called until the [Route] compeltes.
+  /// Returns true after [present] has been called until the [Route] completes.
   bool get isPresent => route != null;
 
   /// The route that [present] added to the Navigator.
diff --git a/packages/flutter/lib/src/widgets/router.dart b/packages/flutter/lib/src/widgets/router.dart
index 4b34a1f9f5..aafe075a85 100644
--- a/packages/flutter/lib/src/widgets/router.dart
+++ b/packages/flutter/lib/src/widgets/router.dart
@@ -219,7 +219,7 @@ class RouteInformation {
 ///   widget should update the URL (typically the top-most one created by the
 ///   [WidgetsApp.router], [MaterialApp.router], or [CupertinoApp.router]).
 ///
-/// * The application does not need to implemenent in-app navigation using the
+/// * The application does not need to implement in-app navigation using the
 ///   browser's back and forward buttons.
 ///
 /// In other cases, it is strongly recommended to implement the
diff --git a/packages/flutter_driver/lib/src/driver/profiling_summarizer.dart b/packages/flutter_driver/lib/src/driver/profiling_summarizer.dart
index 32254ab398..a2fc53e427 100644
--- a/packages/flutter_driver/lib/src/driver/profiling_summarizer.dart
+++ b/packages/flutter_driver/lib/src/driver/profiling_summarizer.dart
@@ -37,7 +37,7 @@ enum ProfileType {
 
 /// Summarizes [TimelineEvents]s corresponding to [kProfilingEvents] category.
 ///
-/// A sample event (some fields have been omitted for brewity):
+/// A sample event (some fields have been omitted for brevity):
 /// ```
 ///     {
 ///      "category": "embedder",
diff --git a/packages/flutter_driver/lib/src/driver/scene_display_lag_summarizer.dart b/packages/flutter_driver/lib/src/driver/scene_display_lag_summarizer.dart
index 200ce05baa..50e72a5fc5 100644
--- a/packages/flutter_driver/lib/src/driver/scene_display_lag_summarizer.dart
+++ b/packages/flutter_driver/lib/src/driver/scene_display_lag_summarizer.dart
@@ -14,7 +14,7 @@ const String _kVsyncTransitionsMissed = 'vsync_transitions_missed';
 
 /// Summarizes [TimelineEvents]s corresponding to [kSceneDisplayLagEvent] events.
 ///
-/// A sample event (some fields have been omitted for brewity):
+/// A sample event (some fields have been omitted for brevity):
 /// ```
 ///     {
 ///      "name": "SceneDisplayLag",