diff --git a/includes/bootstrap.inc b/includes/bootstrap.inc
index de9a175b4397f8475c07f2258b8446adff6df323..4875f4bc1ac66b128265625bda48a861153fdc01 100644
--- a/includes/bootstrap.inc
+++ b/includes/bootstrap.inc
@@ -1419,7 +1419,7 @@ function request_uri() {
  *   The exception that is going to be logged.
  * @param $message
  *   The message to store in the log. If empty, a text that contains all useful
- *   information about the passed in exception is used.
+ *   information about the passed-in exception is used.
  * @param $variables
  *   Array of variables to replace in the message on display. Defaults to the
  *   return value of drupal_decode_exception().
diff --git a/includes/common.inc b/includes/common.inc
index 6d4d79918e1e39c6d616a5ab1eacf9ee0f531182..eb68850ef98558d3f2fee4e55619e5e15fbe0695 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -1974,7 +1974,7 @@ function _format_date_callback(array $matches = NULL, $new_langcode = NULL) {
 /**
  * Format a username.
  *
- * By default, the passed in object's 'name' property is used if it exists, or
+ * By default, the passed-in object's 'name' property is used if it exists, or
  * else, the site-defined value for the 'anonymous' variable. However, a module
  * may override this by implementing hook_username_alter(&$name, $account).
  *
@@ -5229,7 +5229,7 @@ function drupal_set_page_content($content = NULL) {
  *     browsers, '#browsers' can be set to array('IE' => 'gte IE 8').
  *
  * @return
- *   The passed in element with markup for conditional comments potentially
+ *   The passed-in element with markup for conditional comments potentially
  *   added to '#prefix' and '#suffix'.
  */
 function drupal_pre_render_conditional_comments($elements) {
@@ -5291,7 +5291,7 @@ function drupal_pre_render_conditional_comments($elements) {
  *   - #options: (optional) An array of options to pass to l().
  *
  * @return
- *   The passed in elements containing a rendered link in '#markup'.
+ *   The passed-in elements containing a rendered link in '#markup'.
  */
 function drupal_pre_render_link($element) {
   // By default, link options to pass to l() are normally set in #options.
@@ -5438,7 +5438,7 @@ function drupal_pre_render_links($element) {
  *   A structured array using the #markup key.
  *
  * @return
- *   The passed in elements, but #markup appended to #children.
+ *   The passed-in elements, but #markup appended to #children.
  */
 function drupal_pre_render_markup($elements) {
   $elements['#children'] = $elements['#markup'];
@@ -5902,7 +5902,7 @@ function drupal_render_collect_attached($elements, $return = FALSE) {
  *
  * @return
  *   A renderable array with the following keys and values:
- *   - #query: The passed in $query.
+ *   - #query: The passed-in $query.
  *   - #pre_render: $function with a _pre_render suffix.
  *   - #cache: An associative array prepared for drupal_render_cache_set().
  */
diff --git a/includes/graph.inc b/includes/graph.inc
index 339c9be86d52d16b703beb608e0bac09ab6228c9..8b89b7306819b11c53c1069e10abf5ea9cd5859c 100644
--- a/includes/graph.inc
+++ b/includes/graph.inc
@@ -32,7 +32,7 @@
  *   @endcode
  *
  * @return
- *   The passed in $graph with more secondary keys filled in:
+ *   The passed-in $graph with more secondary keys filled in:
  *   - 'paths': Contains a list of vertices than can be reached on a path from
  *     this vertex.
  *   - 'reverse_paths': Contains a list of vertices that has a path from them
diff --git a/includes/menu.inc b/includes/menu.inc
index b238fc275c906537cdf5c8ef7ab020a8a1ea082a..e7abda7b476010a1b31d1204504db9e18652c411 100644
--- a/includes/menu.inc
+++ b/includes/menu.inc
@@ -2066,7 +2066,7 @@ function menu_local_tasks($level = 0) {
  *   node or array('system', 'navigation') for a certain block.
  *
  * @return
- *   A list of menu router items that are local tasks for the passed in path.
+ *   A list of menu router items that are local tasks for the passed-in path.
  *
  * @see contextual_links_preprocess()
  */
diff --git a/includes/module.inc b/includes/module.inc
index ae772ffdae06a95cf1a28b6ca5f22366f27e6cd4..08749f33c7ebdede115157c734deadcb599d181e 100644
--- a/includes/module.inc
+++ b/includes/module.inc
@@ -856,7 +856,7 @@ function drupal_required_modules() {
 /**
  * Hands off alterable variables to type-specific *_alter implementations.
  *
- * This dispatch function hands off the passed in variables to type-specific
+ * This dispatch function hands off the passed-in variables to type-specific
  * hook_TYPE_alter() implementations in modules. It ensures a consistent
  * interface for all altering operations.
  *
diff --git a/includes/theme.inc b/includes/theme.inc
index 28ab8d4d7b54f3e2b2e1d13390bdcc8bf69a20d0..573bbe2e43d9f9f1c9c33b0b1b6be7bafb836a2f 100644
--- a/includes/theme.inc
+++ b/includes/theme.inc
@@ -319,8 +319,8 @@ function drupal_theme_rebuild() {
  *   The theme registry that will eventually be cached; It is an associative
  *   array keyed by theme hooks, whose values are associative arrays describing
  *   the hook:
- *   - 'type': The passed in $type.
- *   - 'theme path': The passed in $path.
+ *   - 'type': The passed-in $type.
+ *   - 'theme path': The passed-in $path.
  *   - 'function': The name of the function generating output for this theme
  *     hook. Either defined explicitly in hook_theme() or, if neither 'function'
  *     nor 'template' is defined, then the default theme function name is used.
diff --git a/misc/tabledrag.js b/misc/tabledrag.js
index 7b526e51157a732da1a77d9f92af8e417da3ed79..b566168c354d786b96135d0c20e95b0b0d27dbec 100644
--- a/misc/tabledrag.js
+++ b/misc/tabledrag.js
@@ -1079,7 +1079,7 @@ Drupal.tableDrag.prototype.row.prototype.indent = function (indentDiff) {
 
 /**
  * Find all siblings for a row, either according to its subgroup or indentation.
- * Note that the passed in row is included in the list of siblings.
+ * Note that the passed-in row is included in the list of siblings.
  *
  * @param settings
  *   The field settings we're using to identify what constitutes a sibling.
diff --git a/modules/field/field.api.php b/modules/field/field.api.php
index f905fa060a63aa64578f4a3f28096a390f5d25c1..e21c28106ae4f3677eb5358a096582f22cf88f3f 100644
--- a/modules/field/field.api.php
+++ b/modules/field/field.api.php
@@ -757,7 +757,7 @@ function hook_field_widget_info_alter(&$info) {
 /**
  * Return the form for a single field widget.
  *
- * Field widget form elements should be based on the passed in $element, which
+ * Field widget form elements should be based on the passed-in $element, which
  * contains the base form element properties derived from the field
  * configuration.
  *
diff --git a/modules/field/field.attach.inc b/modules/field/field.attach.inc
index 2e5fed194ee87ddd8b43d2a62b238ad400568cb1..82aabc054fc7aa97c2ca9ec7b876a270bdc55c7b 100644
--- a/modules/field/field.attach.inc
+++ b/modules/field/field.attach.inc
@@ -877,7 +877,7 @@ function field_attach_presave($entity_type, $entity) {
 /**
  * Save field data for a new entity.
  *
- * The passed in entity must already contain its id and (if applicable)
+ * The passed-in entity must already contain its id and (if applicable)
  * revision id attributes.
  * Default values (if any) will be saved for fields not present in the
  * $entity.
diff --git a/modules/filter/filter.pages.inc b/modules/filter/filter.pages.inc
index 0fa87ad7326e284a9abf3e3e26fd27fcf07d45d2..dbbbe4c5aac129498ed42a319c669c2281639fdd 100644
--- a/modules/filter/filter.pages.inc
+++ b/modules/filter/filter.pages.inc
@@ -39,7 +39,7 @@ function filter_tips_long() {
  *         ),
  *       );
  *     @endcode
- *   - long: (optional) Whether the passed in filter tips contain extended
+ *   - long: (optional) Whether the passed-in filter tips contain extended
  *     explanations, i.e. intended to be output on the path 'filter/tips'
  *     (TRUE), or are in a short format, i.e. suitable to be displayed below a
  *     form element. Defaults to FALSE.
diff --git a/modules/node/node.module b/modules/node/node.module
index c052f4b63fda9c042f11fb793f0f4edb32aa1871..a59a5b1e4aacb4d7274c98476302c30742d12cf8 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -364,7 +364,7 @@ function node_mark($nid, $timestamp) {
  *   Either a string or object, containing the node type information.
  *
  * @return
- *   Node type of the passed in data.
+ *   Node type of the passed-in data.
  */
 function _node_extract_type($node) {
   return is_object($node) ? $node->type : $node;
@@ -1413,7 +1413,7 @@ function node_show($node, $message = FALSE) {
 }
 
 /**
- * Returns whether the current page is the full page view of the passed in node.
+ * Returns whether the current page is the full page view of the passed-in node.
  *
  * @param $node
  *   A node object.
diff --git a/modules/simpletest/drupal_web_test_case.php b/modules/simpletest/drupal_web_test_case.php
index a0cd114e9930137018694d8ebd985a3a7b7262a0..b60c6829c1e58a315f2ff540baacf5b6fd0bdd81 100644
--- a/modules/simpletest/drupal_web_test_case.php
+++ b/modules/simpletest/drupal_web_test_case.php
@@ -1151,7 +1151,7 @@ protected function checkPermissions(array $permissions, $reset = FALSE) {
    * If a user is already logged in, then the current user is logged out before
    * logging in the specified user.
    *
-   * Please note that neither the global $user nor the passed in user object is
+   * Please note that neither the global $user nor the passed-in user object is
    * populated with data of the logged in user. If you need full access to the
    * user object after logging in, it must be updated manually. If you also need
    * access to the plain-text password of the user (set by drupalCreateUser()),
diff --git a/modules/system/system.api.php b/modules/system/system.api.php
index 69bc5dbf5812e8af9273a6f3da5e914f17475f07..d5beb19e721918cbee4fa2c1f510a1a315d36eb8 100644
--- a/modules/system/system.api.php
+++ b/modules/system/system.api.php
@@ -873,7 +873,7 @@ function hook_page_build(&$page) {
  *
  * This hook is invoked by menu_get_item() and allows for run-time alteration of router
  * information (page_callback, title, and so on) before it is translated and checked for
- * access. The passed in $router_item is statically cached for the current request, so this
+ * access. The passed-in $router_item is statically cached for the current request, so this
  * hook is only invoked once for any router item that is retrieved via menu_get_item().
  *
  * Usually, modules will only want to inspect the router item and conditionally
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index f170430ca106eaabde33bfa06399588d3c39fa77..d14a169c875ebec165496225384eb206b1fa60ef 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -746,7 +746,7 @@ function template_preprocess_taxonomy_term(&$variables) {
 }
 
 /**
- * Returns whether the current page is the page of the passed in term.
+ * Returns whether the current page is the page of the passed-in term.
  *
  * @param $term
  *   A term object.