diff --git a/externals/mimemailparser/attachment.class.php b/externals/mimemailparser/attachment.class.php
index d56aba1f8d..2631a4fc44 100644
--- a/externals/mimemailparser/attachment.class.php
+++ b/externals/mimemailparser/attachment.class.php
@@ -102,7 +102,7 @@ class MimeMailParser_attachment {
 	
 	/**
 	 * Retrieve the file content in one go
-	 * Once you retreive the content you cannot use MimeMailParser_attachment::read()
+	 * Once you retrieve the content you cannot use MimeMailParser_attachment::read()
 	 * @return String
 	 */
 	public function getContent() {
diff --git a/src/applications/repository/graphcache/PhabricatorRepositoryGraphCache.php b/src/applications/repository/graphcache/PhabricatorRepositoryGraphCache.php
index 6039c78e87..f1e5aff4ef 100644
--- a/src/applications/repository/graphcache/PhabricatorRepositoryGraphCache.php
+++ b/src/applications/repository/graphcache/PhabricatorRepositoryGraphCache.php
@@ -276,7 +276,7 @@ final class PhabricatorRepositoryGraphCache {
 
 
   /**
-   * Rebuild a cache bucket, amending existing data if avialable.
+   * Rebuild a cache bucket, amending existing data if available.
    *
    * @param   int     Bucket key, from @{method:getBucketKey}.
    * @param   array   Existing bucket data.
diff --git a/src/docs/contributor/database.diviner b/src/docs/contributor/database.diviner
index 273f1d273b..99ee5aeb68 100644
--- a/src/docs/contributor/database.diviner
+++ b/src/docs/contributor/database.diviner
@@ -115,7 +115,7 @@ We use both autoincrementing IDs and global PHIDs because each is useful in
 different contexts. Autoincrementing IDs are chronologically ordered and allow
 us to construct short, human-readable object names (like D2258) and URIs. Global
 PHIDs allow us to represent relationships between different types of objects in
-a homogenous way.
+a homogeneous way.
 
 For example, the concept of "subscribers" is more powerfully done with PHIDs
 because we could theoretically have users, projects, teams, and more all as
@@ -148,7 +148,7 @@ to avoid it if possible.
 There are three simple steps to update the schema:
 
 # Create a `.sql` file in `resources/sql/patches/`. This file should:
-  - Contain the approprate MySQL commands to update the schema.
+  - Contain the appropriate MySQL commands to update the schema.
   - Be named as `YYYYMMDD.patchname.ext`. For example, `20130217.example.sql`.
   - Use `${NAMESPACE}` rather than `phabricator` for database names.
   - Use `COLLATE utf8_bin` for any columns that are to be used as identifiers,
diff --git a/src/docs/user/userguide/arcanist_lint_script_and_regex.diviner b/src/docs/user/userguide/arcanist_lint_script_and_regex.diviner
index 6fe5db2a2f..e8d021b1ac 100644
--- a/src/docs/user/userguide/arcanist_lint_script_and_regex.diviner
+++ b/src/docs/user/userguide/arcanist_lint_script_and_regex.diviner
@@ -96,7 +96,7 @@ The regex should capture these named patterns with `(?P<name>...)`:
     not present in the output. If no severity capturing group is present,
     messages are raised with "error" severity. If multiple severity capturing
     groups are present, messages are raised with the highest captured
-    serverity. Capturing groups like `error` supersede the `severity`
+    severity. Capturing groups like `error` supersede the `severity`
     capturing group.
   - `error` (optional) Match some nonempty substring to indicate that this
     message has "error" severity.
diff --git a/src/infrastructure/query/policy/PhabricatorPolicyAwareQuery.php b/src/infrastructure/query/policy/PhabricatorPolicyAwareQuery.php
index 4e48c729c1..6046bff847 100644
--- a/src/infrastructure/query/policy/PhabricatorPolicyAwareQuery.php
+++ b/src/infrastructure/query/policy/PhabricatorPolicyAwareQuery.php
@@ -416,7 +416,7 @@ abstract class PhabricatorPolicyAwareQuery extends PhabricatorOffsetPagedQuery {
    * searches both the current query's workspace and the workspaces of parent
    * queries.
    *
-   * @param list<phid> List of PHIDs to retreive.
+   * @param list<phid> List of PHIDs to retrieve.
    * @return this
    * @task workspace
    */
diff --git a/webroot/rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadSource.js b/webroot/rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadSource.js
index 909a994e0c..3ce355a2e0 100644
--- a/webroot/rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadSource.js
+++ b/webroot/rsrc/externals/javelin/lib/control/typeahead/source/TypeaheadSource.js
@@ -25,7 +25,7 @@ JX.install('TypeaheadSource', {
      * the server. The purpose of normalization is to strip out irrelevant data,
      * like uppercase/lowercase, extra spaces, or punctuation. By default,
      * the @{JX.TypeaheadNormalizer} is used to normalize strings, but you may
-     * want to provide a different normalizer, particiularly if there are
+     * want to provide a different normalizer, particularly if there are
      * special characters with semantic meaning in your object names.
      *
      * @param function
diff --git a/webroot/rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js b/webroot/rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js
index 0825032fa7..1600470a54 100644
--- a/webroot/rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js
+++ b/webroot/rsrc/js/application/dashboard/behavior-dashboard-query-panel-select.js
@@ -35,7 +35,7 @@ JX.behavior('dashboard-query-panel-select', function(config) {
   }
 
   // When the user changes the selected search engine, update the query
-  // control to show avialable queries for that engine.
+  // control to show available queries for that engine.
   function update() {
     var app = app_control.value;