diff -u b/core/lib/Drupal/Core/Extension/module.api.php b/core/lib/Drupal/Core/Extension/module.api.php
--- b/core/lib/Drupal/Core/Extension/module.api.php
+++ b/core/lib/Drupal/Core/Extension/module.api.php
@@ -20,7 +20,7 @@
  * you can use the Update API to update the data. This API is described in brief
  * here; for more details, see https://www.drupal.org/node/2535316. If you are
  * updating your module for a major version of Drupal (for instance, Drupal 7 to
- * Drupal 8), updates will not run and you'll need to use the
+ * Drupal 8), updates will not run and you will need to use the
  * @link migrate Migrate API @endlink instead.
  *
  * @section sec_when When to write update code
@@ -44,7 +44,7 @@
  * https://www.drupal.org/node/2535316 for details and examples.
  *
  * @section sec_test Testing update code
- * Update code should be tested both manually and by writing an automatic test.
+ * Update code should be tested both manually and by writing an automated test.
  * Automated tests for update code extend
  * \Drupal\system\Tests\Update\UpdatePathTestBase -- see that class for details,
  * and find classes that extend it for examples.
@@ -513,7 +513,7 @@
  * not work as you expect. You cannot count on when update functions will be
  * run.
  *
- * @section sec_bulk Multi-pass or bulk updates
+ * @section sec_bulk Batch updates
  * If running your update all at once could possibly cause PHP to time out, use
  * the $sandbox parameter to indicate that the Batch API should be used for your
  * update. In this case, your update function acts as an implementation of
@@ -528,7 +528,7 @@
  * how to use the Batch API.
  *
  * @param array $sandbox
- *   Stores information for multi-pass updates. See above for more information.
+ *   Stores information for batch updates. See above for more information.
  *
  * @throws \Drupal\Core\Utility\UpdateException|PDOException
  *   In case of error, update hooks should throw an instance of
@@ -549,7 +549,7 @@
  * @see update_get_update_list()
  */
 function hook_update_N(&$sandbox) {
-  // For non-multipass updates, the signature can simply be:
+  // For non-batch updates, the signature can simply be:
   // function hook_update_N() {
 
   // If you are performing database updates, as in the