diff --git a/docs/reference/gio/gdbus-codegen.rst b/docs/reference/gio/gdbus-codegen.rst
index 621b77dcd..e2d035fea 100644
--- a/docs/reference/gio/gdbus-codegen.rst
+++ b/docs/reference/gio/gdbus-codegen.rst
@@ -576,7 +576,7 @@ instantiatable types with the same name but suffixed with ``Proxy`` and
                                     const gchar *greeting,
                                     GCancellable *cancellable,
                                     GAsyncReadyCallback callback,
-                                    gp ointer user_data);
+                                    gpointer user_data);
    gboolean
    my_app_frobber_call_hello_world_finish (MyAppFrobber *proxy,
                                            gchar **out_response,
diff --git a/docs/toolchain-requirements.md b/docs/toolchain-requirements.md
index 698e1b729..959b57198 100644
--- a/docs/toolchain-requirements.md
+++ b/docs/toolchain-requirements.md
@@ -19,7 +19,7 @@ In general, we are primarily interested in supporting these four compilers:
  * MSVC
  * mingw32-w64
 
-This is in keeping with our goal of primarily targetting GNU/Linux, Windows and
+This is in keeping with our goal of primarily targeting GNU/Linux, Windows and
 Mac OS, along with Free Software POSIX-compliant operating systems.  See
 [Supported platforms](./supported-platforms.md) for a bit more information and
 rationale about that.
diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
index 0728fa1f5..0e3f49fc7 100644
--- a/gio/gdbusconnection.c
+++ b/gio/gdbusconnection.c
@@ -2866,7 +2866,7 @@ initable_init (GInitable     *initable,
   /* Because of init_lock, we can't get here twice in different threads */
   g_assert (connection->initialization_error == NULL);
 
-  /* The user can pass multiple (but mutally exclusive) construct
+  /* The user can pass multiple (but mutually exclusive) construct
    * properties:
    *
    *  - stream (of type GIOStream)
diff --git a/gio/gdbusmessage.c b/gio/gdbusmessage.c
index ad7dd2e9b..9212035df 100644
--- a/gio/gdbusmessage.c
+++ b/gio/gdbusmessage.c
@@ -3932,7 +3932,7 @@ g_dbus_message_print (GDBusMessage *message,
  * @message: A #GDBusMessage.
  *
  * Checks whether @message is locked. To monitor changes to this
- * value, conncet to the #GObject::notify signal to listen for changes
+ * value, connect to the #GObject::notify signal to listen for changes
  * on the #GDBusMessage:locked property.
  *
  * Returns: %TRUE if @message is locked, %FALSE otherwise.
diff --git a/gio/gdbusobjectmanagerclient.c b/gio/gdbusobjectmanagerclient.c
index e21a64a52..b01bbc019 100644
--- a/gio/gdbusobjectmanagerclient.c
+++ b/gio/gdbusobjectmanagerclient.c
@@ -1685,7 +1685,7 @@ remove_interfaces (GDBusObjectManagerClient   *manager,
 
   num_interfaces_to_remove = g_strv_length ((gchar **) interface_names);
 
-  /* see if we are going to completety remove the object */
+  /* see if we are going to completely remove the object */
   g_object_ref (manager);
   if (num_interfaces_to_remove == num_interfaces)
     {
diff --git a/gio/glocalfileinfo.c b/gio/glocalfileinfo.c
index 8d7831fb7..2c0ebdeda 100644
--- a/gio/glocalfileinfo.c
+++ b/gio/glocalfileinfo.c
@@ -900,7 +900,7 @@ get_access_rights (GFileAttributeMatcher *attribute_matcher,
 		   GLocalFileStat        *statbuf,
 		   GLocalParentFileInfo  *parent_info)
 {
-  /* FIXME: Windows: The underlyin _waccess() is mostly pointless */
+  /* FIXME: Windows: The underlying _waccess() is mostly pointless */
   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 					    G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ))
     _g_file_info_set_attribute_boolean_by_id (info, G_FILE_ATTRIBUTE_ID_ACCESS_CAN_READ,
diff --git a/gio/gmemorymonitorpsi.c b/gio/gmemorymonitorpsi.c
index 9ad23ce69..27bf97ded 100644
--- a/gio/gmemorymonitorpsi.c
+++ b/gio/gmemorymonitorpsi.c
@@ -294,7 +294,7 @@ g_memory_monitor_psi_calculate_mem_pressure_path (GMemoryMonitorPsi  *monitor,
       return FALSE;
     }
 
-  /* cgroupv2 is only supportted and the format is shown as follows:
+  /* cgroupv2 is only supported and the format is shown as follows:
    * ex: 0::/user.slice/user-0.slice/session-c3.scope */
   if (!g_str_has_prefix (path_read, "0::"))
     {
diff --git a/gio/gosxappinfo.m b/gio/gosxappinfo.m
index bbf1fee2d..917d72bdd 100644
--- a/gio/gosxappinfo.m
+++ b/gio/gosxappinfo.m
@@ -338,7 +338,7 @@ get_bundle_for_id (CFStringRef bundle_id)
           g_free (id_str);
         }
       else
-        g_debug ("Application not found for unconvertable bundle id.");
+        g_debug ("Application not found for unconvertible bundle id.");
 #endif
       return NULL;
     }
diff --git a/gio/gsettingsbackend.c b/gio/gsettingsbackend.c
index d11d1fd97..00cb84d61 100644
--- a/gio/gsettingsbackend.c
+++ b/gio/gsettingsbackend.c
@@ -403,7 +403,7 @@ g_settings_backend_changed (GSettingsBackend *backend,
  * end with '/' and must not contain '//').
  *
  * The meaning of this signal is that any of the key names resulting
- * from the contatenation of @path with each item in @items may have
+ * from the concatenation of @path with each item in @items may have
  * changed.
  *
  * The same rules for when notifications must occur apply as per
diff --git a/gio/gwin32appinfo.c b/gio/gwin32appinfo.c
index 63c0e298f..e94bec2b2 100644
--- a/gio/gwin32appinfo.c
+++ b/gio/gwin32appinfo.c
@@ -4398,7 +4398,7 @@ expand_macro (char               macro,
 Legend: (from http://msdn.microsoft.com/en-us/library/windows/desktop/cc144101%28v=vs.85%29.aspx)
 %* - replace with all parameters
 %~ - replace with all parameters starting with and following the second parameter
-%0 or %1 the first file parameter. For example "C:\\Users\\Eric\\Destop\\New Text Document.txt". Generally this should be in quotes and the applications command line parsing should accept quotes to disambiguate files with spaces in the name and different command line parameters (this is a security best practice and I believe mentioned in MSDN).
+%0 or %1 the first file parameter. For example "C:\\Users\\Eric\\Desktop\\New Text Document.txt". Generally this should be in quotes and the applications command line parsing should accept quotes to disambiguate files with spaces in the name and different command line parameters (this is a security best practice and I believe mentioned in MSDN).
 %<n> (where N is 2 - 9), replace with the nth parameter
 %s - show command
 %h - hotkey value
@@ -4975,7 +4975,7 @@ g_win32_app_info_launch_uwp_single (IApplicationActivationManager  *app_activati
        * ApplicationActivationManager methods return a process ID, but it
        * keeps no open HANDLE to the spawned process internally (tested
        * on Windows 10 21H2). So we cannot guarantee that by the time
-       * OpenProcess is called, process ID still referes to the spawned
+       * OpenProcess is called, process ID still refers to the spawned
        * process. Anyway hitting such case is extremely unlikely.
        *
        * https://docs.microsoft.com/en-us/answers/questions/942879/
diff --git a/gio/kqueue/dep-list.c b/gio/kqueue/dep-list.c
index 0a46aa850..5cf899194 100644
--- a/gio/kqueue/dep-list.c
+++ b/gio/kqueue/dep-list.c
@@ -227,7 +227,7 @@ error:
  * Perform a diff on lists.
  *
  * This function performs something like a set intersection. The same items
- * will be removed from the both lists. Items are comapred by a filename.
+ * will be removed from the both lists. Items are compared by a filename.
  * 
  * @param[in,out] before A pointer to a pointer to a list. Will contain items
  *     which were not found in the 'after' list.
diff --git a/gio/tests/cancellable.c b/gio/tests/cancellable.c
index 74504fad7..0347d4cc7 100644
--- a/gio/tests/cancellable.c
+++ b/gio/tests/cancellable.c
@@ -1078,7 +1078,7 @@ cancelled_toggle_reference_cb (gpointer data,
                          "*has no handler with id*");
 
   /* We try resetting the a signal that isn't connected, since we don't care
-   * about anything but checking wether this would deadlock
+   * about anything but checking whether this would deadlock
    */
   g_cancellable_disconnect (cancellable, G_MAXULONG);
 
@@ -1142,7 +1142,7 @@ connect_data_destroy (gpointer user_data)
   g_assert_true (g_cancellable_is_cancelled (cancellable));
 
   /* We try resetting the cancellable, since we don't care
-   * about anything but checking wether this would deadlock
+   * about anything but checking whether this would deadlock
    */
   g_cancellable_reset (cancellable);
   g_object_unref (cancellable);
diff --git a/gio/tests/gsettings.c b/gio/tests/gsettings.c
index 69e92c051..74dbb4df5 100644
--- a/gio/tests/gsettings.c
+++ b/gio/tests/gsettings.c
@@ -805,7 +805,7 @@ test_l10n (void)
   new_locale = newlocale (LC_MESSAGES_MASK, "de_DE.UTF-8", (locale_t) 0);
   if (new_locale == (locale_t) 0)
     {
-      g_test_skip ("Cannot run test becaues de_DE.UTF-8 locale is not available");
+      g_test_skip ("Cannot run test because de_DE.UTF-8 locale is not available");
       g_object_unref (settings);
       return;
     }
@@ -878,7 +878,7 @@ test_l10n_context (void)
   new_locale = newlocale (LC_MESSAGES_MASK, "de_DE.UTF-8", (locale_t) 0);
   if (new_locale == (locale_t) 0)
     {
-      g_test_skip ("Cannot run test becaues de_DE.UTF-8 locale is not available");
+      g_test_skip ("Cannot run test because de_DE.UTF-8 locale is not available");
       g_object_unref (settings);
       return;
     }
@@ -944,7 +944,7 @@ test_l10n_time (void)
   new_locale = newlocale (LC_TIME_MASK, "de_DE.UTF-8", new_locale);
   if (new_locale == (locale_t) 0)
     {
-      g_test_skip ("Cannot run test becaues de_DE.UTF-8 locale is not available");
+      g_test_skip ("Cannot run test because de_DE.UTF-8 locale is not available");
       g_object_unref (settings);
       return;
     }
diff --git a/gio/tests/gtlsconsoleinteraction.c b/gio/tests/gtlsconsoleinteraction.c
index a0fee3d43..aa13a4ff6 100644
--- a/gio/tests/gtlsconsoleinteraction.c
+++ b/gio/tests/gtlsconsoleinteraction.c
@@ -73,7 +73,7 @@ static_getpass (const gchar *prompt)
 }
 #undef getpass
 #define getpass static_getpass /* avoid overloading a potential
-                                  build environment defintion of getpass */
+                                  build environment definition of getpass */
 #endif
 
 static GTlsInteractionResult
diff --git a/gio/tests/memory-settings-backend.c b/gio/tests/memory-settings-backend.c
index 80e9919bf..66a46cc5c 100644
--- a/gio/tests/memory-settings-backend.c
+++ b/gio/tests/memory-settings-backend.c
@@ -25,7 +25,7 @@
 #include <gio/gsettingsbackend.h>
 
 /* Test that the "gsettings-backend" extension point has been registered.
- * Must be run first and separetly from other GSettingsBackend,
+ * Must be run first and separately from other GSettingsBackend,
  * as they will register the extension point making the test useless.
  */
 static void
diff --git a/gio/tests/null-settings-backend.c b/gio/tests/null-settings-backend.c
index 34dee56d2..9e0fb7e4e 100644
--- a/gio/tests/null-settings-backend.c
+++ b/gio/tests/null-settings-backend.c
@@ -24,7 +24,7 @@
 #include <gio/gsettingsbackend.h>
 
 /* Test that the "gsettings-backend" extension point has been registered.
- * Must be run first and separetly from other GSettingsBackend,
+ * Must be run first and separately from other GSettingsBackend,
  * as they will register the extension point making the test useless.
  */
 static void
diff --git a/gio/tests/osx-appinfo.c b/gio/tests/osx-appinfo.c
index e7dd9d75a..e63b7440d 100644
--- a/gio/tests/osx-appinfo.c
+++ b/gio/tests/osx-appinfo.c
@@ -53,7 +53,7 @@ test_launch_async (GList *uris)
   while (result == NULL)
     g_main_context_iteration (NULL, TRUE);
 
-  // Locally, the result is TRUE, but in CI it's FALSE, due to the absense of a GUI(?)
+  // Locally, the result is TRUE, but in CI it's FALSE, due to the absence of a GUI(?)
   if (g_app_info_launch_uris_finish (G_APP_INFO (app_info), result, &error))
     g_assert_no_error (error);
   else
diff --git a/gio/tests/trash.c b/gio/tests/trash.c
index 033572cc0..ddcf1f81a 100644
--- a/gio/tests/trash.c
+++ b/gio/tests/trash.c
@@ -99,7 +99,7 @@ test_trash_not_supported (void)
   g_object_unref (file);
 }
 
-/* Test that symlinks are properly expaned when looking for topdir (e.g. for trash folder). */
+/* Test that symlinks are properly expanded when looking for topdir (e.g. for trash folder). */
 static void
 test_trash_symlinks (void)
 {
diff --git a/girepository/gitypelib-internal.h b/girepository/gitypelib-internal.h
index 74cf1b4dc..bc4319345 100644
--- a/girepository/gitypelib-internal.h
+++ b/girepository/gitypelib-internal.h
@@ -519,7 +519,7 @@ typedef struct {
  * @caller_owns_return_value: If set, the caller is responsible for freeing
  *   the return value if it is no longer needed.
  * @caller_owns_return_container: This flag is only relevant if the return type
- *   is a container type. If the flag is set, the caller is resonsible for
+ *   is a container type. If the flag is set, the caller is responsible for
  *   freeing the container, but not its contents.
  * @skip_return: Indicates that the return value is only useful in C and should
  *   be skipped.
@@ -1020,7 +1020,7 @@ typedef struct {
  *   things.
  * @setter: the index of the setter function for this property, if @writable
  *   is set; if the method is not known, the value will be set to %ACCESSOR_SENTINEL
- * @getter: ths index of the getter function for this property, if @readable
+ * @getter: the index of the getter function for this property, if @readable
  *   is set; if the method is not known, the value will be set to %ACCESSOR_SENTINEL
  * @reserved: Reserved for future use.
  * @reserved2: Reserved for future use.
diff --git a/girepository/gitypelib.c b/girepository/gitypelib.c
index 68247dd36..184ffd0e5 100644
--- a/girepository/gitypelib.c
+++ b/girepository/gitypelib.c
@@ -727,7 +727,7 @@ validate_param_type_blob (GITypelib     *typelib,
       g_set_error (error,
                    GI_TYPELIB_ERROR,
                    GI_TYPELIB_ERROR_INVALID_BLOB,
-                   "Pointer type exected for tag %d", blob->tag);
+                   "Pointer type expected for tag %d", blob->tag);
       return FALSE;
     }
 
@@ -768,7 +768,7 @@ validate_error_type_blob (GITypelib     *typelib,
       g_set_error (error,
                    GI_TYPELIB_ERROR,
                    GI_TYPELIB_ERROR_INVALID_BLOB,
-                   "Pointer type exected for tag %d", blob->tag);
+                   "Pointer type expected for tag %d", blob->tag);
       return FALSE;
     }
 
@@ -806,7 +806,7 @@ validate_type_blob (GITypelib     *typelib,
           g_set_error (error,
                        GI_TYPELIB_ERROR,
                        GI_TYPELIB_ERROR_INVALID_BLOB,
-                       "Pointer type exected for tag %d", simple->flags.tag);
+                       "Pointer type expected for tag %d", simple->flags.tag);
           return FALSE;
         }
 
diff --git a/glib/gconvert.c b/glib/gconvert.c
index c6a244148..7ad8ca018 100644
--- a/glib/gconvert.c
+++ b/glib/gconvert.c
@@ -809,7 +809,7 @@ typedef enum
 
 /*
  * Convert from @string in the encoding identified by @from_codeset,
- * returning a string in the encoding identifed by @to_codeset.
+ * returning a string in the encoding identified by @to_codeset.
  * @len can be negative if @string is nul-terminated, or a non-negative
  * value in bytes. Flags defined in #ConvertCheckFlags can be set in @flags
  * to check the input, the output, or both, for embedded nul bytes.
diff --git a/glib/gdataset.c b/glib/gdataset.c
index a4d7af487..b47240613 100644
--- a/glib/gdataset.c
+++ b/glib/gdataset.c
@@ -169,7 +169,7 @@ g_datalist_unlock_and_set (GData **datalist, gpointer ptr)
 static gsize
 datalist_alloc_size (guint32 alloc)
 {
-  /* GDataElt also contains pointer. It thus is suitable aligned for pointers,
+  /* GDataElt also contains pointer. It thus is suitably aligned for pointers,
    * and we can just append the pointer for the index at the end. */
   return G_STRUCT_OFFSET (GData, data) +
          (((gsize) alloc) * sizeof (GDataElt)) +
@@ -411,7 +411,7 @@ datalist_shrink (GData **data, GData **d_to_free)
   if (v != alloc_by_4)
     {
       /* d->alloc is a power of two (unless it's G_MAXUINT32). Usually, we
-       * remove one element at a time, then we will just reach reach a quarter
+       * remove one element at a time, then we will just reach a quarter
        * of that.
        *
        * However, with g_datalist_id_remove_multiple(), len can be smaller
diff --git a/glib/gfileutils.c b/glib/gfileutils.c
index 0855ebea1..8b70ddd7d 100644
--- a/glib/gfileutils.c
+++ b/glib/gfileutils.c
@@ -2026,7 +2026,7 @@ g_build_path_va (const gchar  *separator,
 
 /**
  * g_build_pathv:
- * @separator: a string used to separator the elements of the path.
+ * @separator: a string used to separate the elements of the path.
  * @args: (array zero-terminated=1) (element-type filename): %NULL-terminated
  *   array of strings containing the path elements.
  * 
@@ -2053,7 +2053,7 @@ g_build_pathv (const gchar  *separator,
 
 /**
  * g_build_path:
- * @separator: (type filename): a string used to separator the elements of the path.
+ * @separator: (type filename): a string used to separate the elements of the path.
  * @first_element: (type filename): the first element in the path
  * @...: remaining elements in path, terminated by %NULL
  * 
diff --git a/glib/ghash.c b/glib/ghash.c
index e922e1a88..33086e854 100644
--- a/glib/ghash.c
+++ b/glib/ghash.c
@@ -1909,7 +1909,7 @@ g_hash_table_steal_all (GHashTable *hash_table)
  * destroy function.
  *
  * Returns: (transfer container): a #GPtrArray containing each key of
- * the table. Unref with with g_ptr_array_unref() when done.
+ * the table. Unref with g_ptr_array_unref() when done.
  *
  * Since: 2.76
  */
@@ -1946,7 +1946,7 @@ g_hash_table_steal_all_keys (GHashTable *hash_table)
  * destroy function.
  *
  * Returns: (transfer container): a #GPtrArray containing each value of
- * the table. Unref with with g_ptr_array_unref() when done.
+ * the table. Unref with g_ptr_array_unref() when done.
  *
  * Since: 2.76
  */
@@ -2318,7 +2318,7 @@ g_hash_table_get_keys_as_array (GHashTable *hash_table,
  * You should always unref the returned array with g_ptr_array_unref().
  *
  * Returns: (transfer container): a #GPtrArray containing each key from
- * the table. Unref with with g_ptr_array_unref() when done.
+ * the table. Unref with g_ptr_array_unref() when done.
  *
  * Since: 2.76
  **/
@@ -2393,7 +2393,7 @@ g_hash_table_get_values (GHashTable *hash_table)
  * You should always unref the returned array with g_ptr_array_unref().
  *
  * Returns: (transfer container): a #GPtrArray containing each value from
- * the table. Unref with with g_ptr_array_unref() when done.
+ * the table. Unref with g_ptr_array_unref() when done.
  *
  * Since: 2.76
  **/
diff --git a/glib/gpathbuf.c b/glib/gpathbuf.c
index e51f3f1bd..de4f7c52b 100644
--- a/glib/gpathbuf.c
+++ b/glib/gpathbuf.c
@@ -560,7 +560,7 @@ g_path_buf_to_path (GPathBuf *buf)
  * Compares two path buffers for equality and returns `TRUE`
  * if they are equal.
  *
- * The path inside the paths buffers are not going to be normalized,
+ * The paths inside the path buffers are not going to be normalized,
  * so `X/Y/Z/A/..`, `X/./Y/Z` and `X/Y/Z` are not going to be considered
  * equal.
  *
diff --git a/glib/gstrfuncs.c b/glib/gstrfuncs.c
index 9b76049a4..7ef9ff84e 100644
--- a/glib/gstrfuncs.c
+++ b/glib/gstrfuncs.c
@@ -1022,7 +1022,7 @@ g_parse_long_long (const gchar  *nptr,
                    guint         base,
                    gboolean     *negative)
 {
-  /* this code is based on on the strtol(3) code from GNU libc released under
+  /* this code is based on the strtol(3) code from GNU libc released under
    * the GNU Lesser General Public License.
    *
    * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
diff --git a/glib/gstring.c b/glib/gstring.c
index 9c104bf24..6f20ad681 100644
--- a/glib/gstring.c
+++ b/glib/gstring.c
@@ -154,7 +154,7 @@ g_string_new (const gchar *init)
  * Creates a new #GString, initialized with the given string.
  *
  * After this call, @init belongs to the #GString and may no longer be
- * modified by the caller. The memory of @data has to be dynamically
+ * modified by the caller. The memory of @init has to be dynamically
  * allocated and will eventually be freed with g_free().
  *
  * Returns: (transfer full): the new #GString
diff --git a/glib/gtestutils.c b/glib/gtestutils.c
index e9ca56dbd..99d6e4c4d 100644
--- a/glib/gtestutils.c
+++ b/glib/gtestutils.c
@@ -2874,7 +2874,7 @@ g_test_add_data_func (const char     *testpath,
  *
  * Creates a new test case.
  *
- * In constract to [func@GLib.test_add_data_func], this function
+ * In contrast to [func@GLib.test_add_data_func], this function
  * is freeing @test_data after the test run is complete.
  *
  * Since: 2.34
diff --git a/glib/gunicode.h b/glib/gunicode.h
index cb8e30b41..d97f59a84 100644
--- a/glib/gunicode.h
+++ b/glib/gunicode.h
@@ -864,7 +864,7 @@ gchar   *g_utf8_truncate_middle   (const gchar *string,
                                    gsize        truncate_length);
 
 /* Find the UTF-8 character corresponding to ch, in string p. These
-   functions are equivalants to strchr and strrchr */
+   functions are equivalents to strchr and strrchr */
 GLIB_AVAILABLE_IN_ALL
 gchar* g_utf8_strchr  (const gchar *p,
                        gssize       len,
diff --git a/glib/gunicollate.c b/glib/gunicollate.c
index d594677c2..4c5336b25 100644
--- a/glib/gunicollate.c
+++ b/glib/gunicollate.c
@@ -229,7 +229,7 @@ collate_key_to_string (UCCollationValue *key,
    *
    * UCCollateOptions (32/64 bits)
    * SizeInBytes      (32/64 bits)
-   * Value            (8 bits arrey)
+   * Value            (8 bits array)
    *
    * UCCollateOptions: ordering option mask of the collator
    * used to create the key. Size changes on 32-bit / 64-bit
diff --git a/glib/gvariant-serialiser.c b/glib/gvariant-serialiser.c
index 08c2e213f..1a050c40b 100644
--- a/glib/gvariant-serialiser.c
+++ b/glib/gvariant-serialiser.c
@@ -1620,7 +1620,7 @@ g_variant_serialised_get_child (GVariantSerialised serialised,
  * memory region large enough to serialize into (ie: at least as big as
  * the size field).
  *
- * This function is only resonsible for serializing the top-level
+ * This function is only responsible for serializing the top-level
  * container.  @gvs_filler is called on each child of the container in
  * order for all of the data of that child to be filled in.
  */
diff --git a/glib/tests/fileutils.c b/glib/tests/fileutils.c
index 9cbf80f10..b0f99949b 100644
--- a/glib/tests/fileutils.c
+++ b/glib/tests/fileutils.c
@@ -2642,7 +2642,7 @@ test_clear_fd_ebadf (void)
   gboolean ret;
   GWin32InvalidParameterHandler handler;
 
-  /* We're going to trigger a programming error: attmpting to close a
+  /* We're going to trigger a programming error: attempting to close a
    * fd that was already closed. Make criticals non-fatal. */
   g_assert_true (g_test_undefined ());
   g_log_set_always_fatal (G_LOG_FATAL_MASK);
diff --git a/glib/tests/gvariant.c b/glib/tests/gvariant.c
index 8e1713046..7c8b5545a 100644
--- a/glib/tests/gvariant.c
+++ b/glib/tests/gvariant.c
@@ -5722,7 +5722,7 @@ test_normal_checking_tuple_offsets5 (void)
    *  - The offset of the first `s` in the tuple is always 0.
    *
    * See §2.5.4 (Structures) of the GVariant specification for details, noting
-   * that the table is only layed out this way because all three members of the
+   * that the table is only laid out this way because all three members of the
    * tuple have non-fixed sizes.
    *
    * It’s not clear whether the 0xaa data of this variant is part of the strings
diff --git a/glib/tests/mem-overflow.c b/glib/tests/mem-overflow.c
index b8b65c17a..783a80ba4 100644
--- a/glib/tests/mem-overflow.c
+++ b/glib/tests/mem-overflow.c
@@ -1,4 +1,4 @@
-/* Unit tests for g
+/* Unit tests for gmem
  * Copyright (C) 2010 Red Hat, Inc.
  *
  * SPDX-License-Identifier: LicenseRef-old-glib-tests
diff --git a/glib/tests/messages-low-memory.c b/glib/tests/messages-low-memory.c
index 479143723..8274f3d8b 100644
--- a/glib/tests/messages-low-memory.c
+++ b/glib/tests/messages-low-memory.c
@@ -78,7 +78,7 @@ main (int   argc,
 #ifndef __linux__
   if (!our_malloc_called)
     {
-      /* For some reasons this doesn't work darwin systems, so ignore the result
+      /* For some reasons this doesn't work on darwin systems, so ignore the result
        * for non-linux, while we want to ensure the test is valid at least there
        */
       g_message ("Our malloc implementation has not been called, the test "
diff --git a/glib/tests/unicode.c b/glib/tests/unicode.c
index 9e587697a..90b5a98b8 100644
--- a/glib/tests/unicode.c
+++ b/glib/tests/unicode.c
@@ -1697,7 +1697,7 @@ test_canonical_decomposition (void)
 #undef TEST_DECOMP
 }
 
-/* Test that g_unichar_decompose() whenever encouttering a char ch
+/* Test that g_unichar_decompose() whenever encountering a char ch
  * decomposes into a and b, b itself won't decompose any further. */
 static void
 test_decompose_tail (void)
diff --git a/glib/tests/utf8.txt b/glib/tests/utf8.txt
index 194d1b532..df258d031 100644
--- a/glib/tests/utf8.txt
+++ b/glib/tests/utf8.txt
@@ -4,7 +4,7 @@
 #    
 # Which was created by   Markus Kuhn <mkuhn@acm.org> - 2000-09-02 
 #
-# lines begining with # and blank lines are ignored
+# lines beginning with # and blank lines are ignored
 #
 # Beyond that, this file consists of a series of test cases. Each test case consists of
 # 2 or 3 lines:
diff --git a/gobject/glib-types.h b/gobject/glib-types.h
index e31baf144..d3c8d0093 100644
--- a/gobject/glib-types.h
+++ b/gobject/glib-types.h
@@ -28,7 +28,7 @@
 
 G_BEGIN_DECLS
 
-/* A hack necesssary to preprocess this file with g-ir-scanner */
+/* A hack necessary to preprocess this file with g-ir-scanner */
 #ifdef __GI_SCANNER__
 typedef gsize GType;
 #endif
diff --git a/gobject/gparam.c b/gobject/gparam.c
index 939aeb5c6..dd3a1b604 100644
--- a/gobject/gparam.c
+++ b/gobject/gparam.c
@@ -1191,7 +1191,7 @@ g_param_spec_pool_lookup (GParamSpecPool *pool,
           type = g_type_from_name (buffer);
           if (l >= 32)
             g_free (buffer);
-          if (type)         /* type==0 isn't a valid type pefix */
+          if (type)         /* type==0 isn't a valid type prefix */
             {
               /* sanity check, these cases don't make a whole lot of sense */
               if ((!walk_ancestors && type != owner_type) || !g_type_is_a (owner_type, type))
diff --git a/gobject/gparam.h b/gobject/gparam.h
index 147ff53a2..edfcec170 100644
--- a/gobject/gparam.h
+++ b/gobject/gparam.h
@@ -411,7 +411,7 @@ GType	g_param_type_register_static	(const gchar		  *name,
 GOBJECT_AVAILABLE_IN_2_66
 gboolean g_param_spec_is_valid_name    (const gchar              *name);
 
-/* For registering builting types */
+/* For registering builtin types */
 GType  _g_param_type_register_static_constant (const gchar              *name,
 					       const GParamSpecTypeInfo *pspec_info,
 					       GType                     opt_type);
diff --git a/meson.build b/meson.build
index f97b20c9a..355a26d00 100644
--- a/meson.build
+++ b/meson.build
@@ -2301,7 +2301,7 @@ endif
 
 # First check in libc, fallback to libintl, and as last chance build
 # proxy-libintl subproject.
-# FIXME: glib-gettext.m4 has much more checks to detect broken/uncompatible
+# FIXME: glib-gettext.m4 has much more checks to detect broken/incompatible
 # implementations. This could be extended if issues are found in some platforms.
 libintl_deps = []
 libintl_prefix = '#include <libintl.h>'