diff --git a/admin/cli/install.php b/admin/cli/install.php
index c86dcf22e17..591ea86af05 100644
--- a/admin/cli/install.php
+++ b/admin/cli/install.php
@@ -106,7 +106,7 @@ if (file_exists($configfile)) {
 
 $olddir = getcwd();
 
-// change directory so that includes bellow work properly
+// change directory so that includes below work properly
 chdir(dirname($_SERVER['argv'][0]));
 
 // Servers should define a default timezone in php.ini, but if they don't then make sure something is defined.
diff --git a/admin/dbtransfer/lib.php b/admin/dbtransfer/lib.php
index de868b352e2..04f021d969b 100644
--- a/admin/dbtransfer/lib.php
+++ b/admin/dbtransfer/lib.php
@@ -13,7 +13,7 @@ TODO:
     (user would need file access to dataroot which might prevent various "accidents")
   - implement "Export/import running" notification in lib/setup.php (similar to new upgrade flag in config table)
   - gzip compression when storing xml file - the xml is very verbose and full of repeated tags (zip is not suitable here at all)
-    this could help us keep the files bellow 2G (expected ratio is > 10:1)
+    this could help us keep the files below 2G (expected ratio is > 10:1)
 
 */
 
diff --git a/admin/uploaduser.php b/admin/uploaduser.php
index 3ee02a3ef36..4e3214ce95d 100644
--- a/admin/uploaduser.php
+++ b/admin/uploaduser.php
@@ -231,7 +231,7 @@ if ($formdata = $mform2->is_cancelled()) {
             }
         }
         if (!isset($user->username)) {
-            // prevent warnings bellow
+            // prevent warnings below
             $user->username = '';
         }
 
diff --git a/course/report/stats/graph.php b/course/report/stats/graph.php
index d3b1659464c..1ebb27542b7 100644
--- a/course/report/stats/graph.php
+++ b/course/report/stats/graph.php
@@ -153,7 +153,7 @@ if (empty($param->crosstab)) {
     }
 
     $roleid = 0;
-    krsort($roles); // the same sorting as in table bellow graph
+    krsort($roles); // the same sorting as in table below graph
 
     $colors = array('green', 'blue', 'red', 'purple', 'yellow', 'olive', 'navy', 'maroon', 'gray', 'ltred', 'ltltred', 'ltgreen', 'ltltgreen', 'orange', 'ltorange', 'ltltorange', 'lime', 'ltblue', 'ltltblue', 'fuchsia', 'aqua', 'grayF0', 'grayEE', 'grayDD', 'grayCC', 'gray33', 'gray66', 'gray99');
     $colorindex = 0;
diff --git a/enrol/category/db/access.php b/enrol/category/db/access.php
index d18e55a4ba5..8c24b969507 100644
--- a/enrol/category/db/access.php
+++ b/enrol/category/db/access.php
@@ -28,7 +28,7 @@ defined('MOODLE_INTERNAL') || die();
 
 $capabilities = array(
     // marks roles that have category role assignments synchronised to course enrolments
-    // overrides bellow system context are ignored (for performance reasons).
+    // overrides below system context are ignored (for performance reasons).
     // by default his is not allowed in new installs, admins have to explicitly allow category enrolments
     'enrol/category:synchronised' => array(
         'captype' => 'write',
diff --git a/filter/mediaplugin/filter.php b/filter/mediaplugin/filter.php
index e1e61cab5b7..cb4a75166de 100644
--- a/filter/mediaplugin/filter.php
+++ b/filter/mediaplugin/filter.php
@@ -74,7 +74,7 @@ class filter_mediaplugin extends moodle_text_filter {
             return $text;
         }
         if (stripos($text, '</a>') === false) {
-            // performance shortcut - all regexes bellow end with the </a> tag,
+            // performance shortcut - all regexes below end with the </a> tag,
             // if not present nothing can match
             return $text;
         }
@@ -281,7 +281,7 @@ function filter_mediaplugin_html5audio_callback(array $link) {
         $sources[] = html_writer::tag('source', '', array('src' => $url, 'type' => $mimetype));
 
         if ($fallbacklink === null) {
-            $fallbacklink = html_writer::link($url.'#', $info); // the extra '#' prevents linking in mp3 filter bellow
+            $fallbacklink = html_writer::link($url.'#', $info); // the extra '#' prevents linking in mp3 filter below
         }
         if ($fallbackurl === null) {
             if ($mimetype === 'audio/mp3' or $mimetype === 'audio/aac') {
@@ -379,7 +379,7 @@ function filter_mediaplugin_html5video_callback(array $link) {
         }
 
         if ($fallbacklink === null) {
-            $fallbacklink = html_writer::link($url.'#', $info); // the extra '#' prevents linking in mp3 filter bellow
+            $fallbacklink = html_writer::link($url.'#', $info); // the extra '#' prevents linking in mp3 filter below
         }
         if ($fallbackurl === null) {
             if ($mimetype === 'video/mp4') {
diff --git a/grade/report/grader/lib.php b/grade/report/grader/lib.php
index 5b0da252b72..e836aa2bde3 100644
--- a/grade/report/grader/lib.php
+++ b/grade/report/grader/lib.php
@@ -163,7 +163,7 @@ class grade_report_grader extends grade_report {
             $separategroups = true;
             $mygroups = groups_get_user_groups($this->course->id);
             $mygroups = $mygroups[0]; // ignore groupings
-            // reorder the groups fro better perf bellow
+            // reorder the groups fro better perf below
             $current = array_search($this->currentgroup, $mygroups);
             if ($current !== false) {
                 unset($mygroups[$current]);
diff --git a/lib/accesslib.php b/lib/accesslib.php
index 60710f91806..4dcf606a90c 100644
--- a/lib/accesslib.php
+++ b/lib/accesslib.php
@@ -368,7 +368,7 @@ function get_role_context_caps($roleid, $context) {
         }
     }
 
-    // now go through the contexts bellow given context
+    // now go through the contexts below given context
     $searchcontexts = array_keys(get_child_contexts($context));
     foreach ($searchcontexts as $cid) {
         if ($capabilities = $DB->get_records('role_capabilities', array('roleid'=>$roleid, 'contextid'=>$cid))) {
@@ -3748,13 +3748,13 @@ function fetch_context_capabilities($context) {
                            OR name $extra";
         break;
 
-        case CONTEXT_COURSECAT: // course category context and bellow
+        case CONTEXT_COURSECAT: // course category context and below
             $SQL = "SELECT *
                       FROM {capabilities}
                      WHERE contextlevel IN (".CONTEXT_COURSECAT.",".CONTEXT_COURSE.",".CONTEXT_MODULE.",".CONTEXT_BLOCK.")";
         break;
 
-        case CONTEXT_COURSE: // course context and bellow
+        case CONTEXT_COURSE: // course context and below
             $SQL = "SELECT *
                       FROM {capabilities}
                      WHERE contextlevel IN (".CONTEXT_COURSE.",".CONTEXT_MODULE.",".CONTEXT_BLOCK.")";
diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 82bbb335eee..9e979055edb 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -2914,7 +2914,7 @@ WHERE gradeitemid IS NOT NULL AND grademax IS NOT NULL");
             $DB->delete_records('role_capabilities', array('capability'=>'moodle/site:config', 'roleid'=>$manager->id)); // only site admins may configure servers
             // note: doanything and legacy caps are deleted automatically, they get moodle/course:view later at the end of the upgrade
 
-            // remove manager role assignments bellow the course context level - admin role was never intended for activities and blocks,
+            // remove manager role assignments below the course context level - admin role was never intended for activities and blocks,
             // the problem is that those assignments would not be visible after upgrade and old style admins in activities make no sense anyway
             $DB->delete_records_select('role_assignments', "roleid = :manager AND contextid IN (SELECT id FROM {context} WHERE contextlevel > 50)", array('manager'=>$manager->id));
 
diff --git a/lib/htmlpurifier/HTMLPurifier/Lexer/PH5P.php b/lib/htmlpurifier/HTMLPurifier/Lexer/PH5P.php
index faf00b82913..6f3a13702d2 100644
--- a/lib/htmlpurifier/HTMLPurifier/Lexer/PH5P.php
+++ b/lib/htmlpurifier/HTMLPurifier/Lexer/PH5P.php
@@ -1113,7 +1113,7 @@ class HTML5 {
                 $entity = $this->character($start, $this->char);
                 $cond = strlen($e_name) > 0;
 
-                // The rest of the parsing happens bellow.
+                // The rest of the parsing happens below.
             break;
 
             // Anything else
@@ -1140,7 +1140,7 @@ class HTML5 {
                 }
 
                 $cond = isset($entity);
-                // The rest of the parsing happens bellow.
+                // The rest of the parsing happens below.
             break;
         }
 
diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 7833a3aa542..533be354d9e 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -7364,7 +7364,7 @@ function plugin_callback($type, $name, $feature, $action, $params = null, $defau
  * @return mixed
  */
 function component_callback($component, $function, array $params = array(), $default = null) {
-    global $CFG; // this is needed for require_once() bellow
+    global $CFG; // this is needed for require_once() below
 
     $cleancomponent = clean_param($component, PARAM_SAFEDIR);
     if (empty($cleancomponent)) {
diff --git a/mod/url/lang/en/url.php b/mod/url/lang/en/url.php
index 9e954a8c409..b152259ddf7 100644
--- a/mod/url/lang/en/url.php
+++ b/mod/url/lang/en/url.php
@@ -64,7 +64,7 @@ $string['popupwidthexplain'] = 'Specifies default width of popup windows.';
 $string['printheading'] = 'Display URL name';
 $string['printheadingexplain'] = 'Display URL name above content? Some display types may not display URL name even if enabled.';
 $string['printintro'] = 'Display URL description';
-$string['printintroexplain'] = 'Display URL description bellow content? Some display types may not display description even if enabled.';
+$string['printintroexplain'] = 'Display URL description below content? Some display types may not display description even if enabled.';
 $string['rolesinparams'] = 'Include role names in parameters';
 $string['serverurl'] = 'Server URL';
 $string['url:view'] = 'View URL';
diff --git a/user/view.php b/user/view.php
index ce82f8ed4cc..abd846e6bf8 100644
--- a/user/view.php
+++ b/user/view.php
@@ -57,7 +57,7 @@ if (isguestuser($user)) {
 }
 
 if (!empty($CFG->forceloginforprofiles)) {
-    require_login(); // we can not log in to course due to the parent hack bellow
+    require_login(); // we can not log in to course due to the parent hack below
 }
 
 $PAGE->set_context($coursecontext);