diff --git a/app/code/Magento/Catalog/Model/Indexer/Category/Product/TableMaintainer.php b/app/code/Magento/Catalog/Model/Indexer/Category/Product/TableMaintainer.php
index 1278434fcad43..105a6dbf30456 100644
--- a/app/code/Magento/Catalog/Model/Indexer/Category/Product/TableMaintainer.php
+++ b/app/code/Magento/Catalog/Model/Indexer/Category/Product/TableMaintainer.php
@@ -139,7 +139,7 @@ public function getMainTable(int $storeId)
     public function createTablesForStore(int $storeId)
     {
         $mainTableName = $this->getMainTable($storeId);
-        //Create index table for store based on on main replica table
+        //Create index table for store based on main replica table
         //Using main replica table is necessary for backward capability and TableResolver plugin work
         $this->createTable(
             $this->getTable(AbstractAction::MAIN_INDEX_TABLE . $this->additionalTableSuffix),
diff --git a/app/code/Magento/Catalog/Model/Layer/Filter/AbstractFilter.php b/app/code/Magento/Catalog/Model/Layer/Filter/AbstractFilter.php
index a4db630f0234b..d21a8666ec0ac 100644
--- a/app/code/Magento/Catalog/Model/Layer/Filter/AbstractFilter.php
+++ b/app/code/Magento/Catalog/Model/Layer/Filter/AbstractFilter.php
@@ -241,7 +241,7 @@ protected function _createItem($label, $value, $count = 0)
     }
 
     /**
-     * Get all product ids from from collection with applied filters
+     * Get all product ids from collection with applied filters
      *
      * @return array
      */
diff --git a/app/code/Magento/Catalog/Model/ResourceModel/Product/Option.php b/app/code/Magento/Catalog/Model/ResourceModel/Product/Option.php
index 4775b96e3a448..179da06b59990 100644
--- a/app/code/Magento/Catalog/Model/ResourceModel/Product/Option.php
+++ b/app/code/Magento/Catalog/Model/ResourceModel/Product/Option.php
@@ -307,7 +307,7 @@ protected function _saveValueTitles(\Magento\Framework\Model\AbstractModel $obje
     }
 
     /**
-     * Get first col from from first row for option table
+     * Get first col from first row for option table
      *
      * @param string $tableName
      * @param int $optionId
diff --git a/app/code/Magento/Catalog/Model/ResourceModel/Product/Option/Value.php b/app/code/Magento/Catalog/Model/ResourceModel/Product/Option/Value.php
index 91bb99ca971a7..4ebcd1f4b9ae4 100644
--- a/app/code/Magento/Catalog/Model/ResourceModel/Product/Option/Value.php
+++ b/app/code/Magento/Catalog/Model/ResourceModel/Product/Option/Value.php
@@ -300,7 +300,7 @@ protected function _saveValueTitles(AbstractModel $object)
     }
 
     /**
-     * Get first col from from first row for option table
+     * Get first col from first row for option table
      *
      * @param string $tableName
      * @param int $optionId
diff --git a/app/code/Magento/Catalog/view/adminhtml/web/js/product/weight-handler.js b/app/code/Magento/Catalog/view/adminhtml/web/js/product/weight-handler.js
index 475c9d2dc0601..94300e31f74b5 100644
--- a/app/code/Magento/Catalog/view/adminhtml/web/js/product/weight-handler.js
+++ b/app/code/Magento/Catalog/view/adminhtml/web/js/product/weight-handler.js
@@ -67,10 +67,10 @@ define([
         },
 
         /**
-         * Has weight swither
+         * Has weight switcher
          * @returns {*}
          */
-        hasWeightSwither: function () {
+        hasWeightSwitcher: function () {
             return this.$weightSwitcher().is(':visible');
         },
 
@@ -107,7 +107,7 @@ define([
         'Magento_Catalog/js/product/weight-handler': function () {
             this.bindAll();
 
-            if (this.hasWeightSwither()) {
+            if (this.hasWeightSwitcher()) {
                 this.switchWeight();
             }
         },
diff --git a/app/code/Magento/CatalogRule/Test/Mftf/ActionGroup/CatalogPriceRuleActionGroup.xml b/app/code/Magento/CatalogRule/Test/Mftf/ActionGroup/CatalogPriceRuleActionGroup.xml
index ad92af9bb3b1b..2d437ab086f82 100644
--- a/app/code/Magento/CatalogRule/Test/Mftf/ActionGroup/CatalogPriceRuleActionGroup.xml
+++ b/app/code/Magento/CatalogRule/Test/Mftf/ActionGroup/CatalogPriceRuleActionGroup.xml
@@ -18,7 +18,7 @@
         <waitForPageLoad stepKey="waitForPriceRulePage"/>
         <click stepKey="addNewRule" selector="{{AdminGridMainControls.add}}"/>
 
-        <!-- Fill the form according the the attributes of the entity -->
+        <!-- Fill the form according the attributes of the entity -->
         <fillField stepKey="fillName" selector="{{AdminNewCatalogPriceRule.ruleName}}" userInput="{{catalogRule.name}}"/>
         <fillField stepKey="fillDescription" selector="{{AdminNewCatalogPriceRule.description}}" userInput="{{catalogRule.description}}"/>
         <selectOption stepKey="selectSite" selector="{{AdminNewCatalogPriceRule.websites}}" userInput="{{catalogRule.website_ids[0]}}"/>
diff --git a/app/code/Magento/Customer/Controller/Adminhtml/Index/AbstractMassAction.php b/app/code/Magento/Customer/Controller/Adminhtml/Index/AbstractMassAction.php
index ebab2a42a02ec..e26b49aaebe7a 100644
--- a/app/code/Magento/Customer/Controller/Adminhtml/Index/AbstractMassAction.php
+++ b/app/code/Magento/Customer/Controller/Adminhtml/Index/AbstractMassAction.php
@@ -73,7 +73,7 @@ public function execute()
 
     /**
      * Return component referer url
-     * TODO: Technical dept referer url should be implement as a part of Action configuration in in appropriate way
+     * TODO: Technical dept referer url should be implement as a part of Action configuration in appropriate way
      *
      * @return null|string
      */
diff --git a/app/code/Magento/Downloadable/Model/ResourceModel/Link/Collection.php b/app/code/Magento/Downloadable/Model/ResourceModel/Link/Collection.php
index 4590d5433ed72..73ae696a85187 100644
--- a/app/code/Magento/Downloadable/Model/ResourceModel/Link/Collection.php
+++ b/app/code/Magento/Downloadable/Model/ResourceModel/Link/Collection.php
@@ -87,7 +87,7 @@ public function addProductToFilter($product)
     }
 
     /**
-     * Retrieve title for for current store
+     * Retrieve title for current store
      *
      * @param int $storeId
      * @return $this
@@ -113,7 +113,7 @@ public function addTitleToResult($storeId = 0)
     }
 
     /**
-     * Retrieve price for for current website
+     * Retrieve price for current website
      *
      * @param int $websiteId
      * @return $this
diff --git a/app/code/Magento/ReleaseNotification/README.md b/app/code/Magento/ReleaseNotification/README.md
index e0d6e6de17c60..df3206a176f09 100644
--- a/app/code/Magento/ReleaseNotification/README.md
+++ b/app/code/Magento/ReleaseNotification/README.md
@@ -46,7 +46,7 @@ Each modal page can have the following optional content:
 
 The Sub Heading section is ideally used on the first modal page as a way to describe one to three highlighted features that will be presented in greater detail on the following modal pages. It is recommended to use the Main Content -> Text Body and Bullet Point lists as the paragraph and list content displayed on a highlighted feature's detail modal page.
 
-A clickable link to internal or external content in any text field will be created by using the following format and opened in a new browser tab. Providing the URL for the link followed by the the text to be displayed for that link in brackets will cause a clickable link to be created. The text between the brackets [text] will be the text that the clickable link shows.
+A clickable link to internal or external content in any text field will be created by using the following format and opened in a new browser tab. Providing the URL for the link followed by the text to be displayed for that link in brackets will cause a clickable link to be created. The text between the brackets [text] will be the text that the clickable link shows.
 
 ### Link Format Example:
 
diff --git a/app/code/Magento/Sales/Controller/Adminhtml/Order/AbstractMassAction.php b/app/code/Magento/Sales/Controller/Adminhtml/Order/AbstractMassAction.php
index 891bfeefc9f52..05066fe5b125e 100644
--- a/app/code/Magento/Sales/Controller/Adminhtml/Order/AbstractMassAction.php
+++ b/app/code/Magento/Sales/Controller/Adminhtml/Order/AbstractMassAction.php
@@ -70,7 +70,7 @@ public function execute()
 
     /**
      * Return component referrer url
-     * TODO: Technical dept referrer url should be implement as a part of Action configuration in in appropriate way
+     * TODO: Technical dept referrer url should be implement as a part of Action configuration in appropriate way
      *
      * @return null|string
      */
diff --git a/app/code/Magento/Ui/view/base/web/js/lib/core/element/element.js b/app/code/Magento/Ui/view/base/web/js/lib/core/element/element.js
index b228494b422c3..1684f0b220175 100644
--- a/app/code/Magento/Ui/view/base/web/js/lib/core/element/element.js
+++ b/app/code/Magento/Ui/view/base/web/js/lib/core/element/element.js
@@ -46,7 +46,7 @@ define([
     }
 
     /**
-     * Creates observable propery using 'track' method.
+     * Creates observable property using 'track' method.
      *
      * @param {Object} obj - Object to whom property belongs.
      * @param {String} key - Key of the property.
diff --git a/dev/tests/api-functional/framework/Magento/TestFramework/TestCase/Webapi/Adapter/Soap.php b/dev/tests/api-functional/framework/Magento/TestFramework/TestCase/Webapi/Adapter/Soap.php
index aee77ae6d589f..e2e32c119af21 100644
--- a/dev/tests/api-functional/framework/Magento/TestFramework/TestCase/Webapi/Adapter/Soap.php
+++ b/dev/tests/api-functional/framework/Magento/TestFramework/TestCase/Webapi/Adapter/Soap.php
@@ -63,7 +63,7 @@ public function call($serviceInfo, $arguments = [], $storeCode = null, $integrat
     }
 
     /**
-     * Get proper SOAP client instance that is initialized with with WSDL corresponding to requested service interface.
+     * Get proper SOAP client instance that is initialized with WSDL corresponding to requested service interface.
      *
      * @param string $serviceInfo PHP service interface name, should include version if present
      * @param string|null $storeCode
diff --git a/dev/tests/functional/tests/app/Magento/Downloadable/Test/Block/Catalog/Product/View/Links.php b/dev/tests/functional/tests/app/Magento/Downloadable/Test/Block/Catalog/Product/View/Links.php
index 3d3920f28a733..648361b0a31c8 100644
--- a/dev/tests/functional/tests/app/Magento/Downloadable/Test/Block/Catalog/Product/View/Links.php
+++ b/dev/tests/functional/tests/app/Magento/Downloadable/Test/Block/Catalog/Product/View/Links.php
@@ -18,7 +18,7 @@
 class Links extends Block
 {
     /**
-     * Selector title for for links
+     * Selector title for links
      *
      * @var string
      */
diff --git a/dev/tests/functional/tests/app/Magento/Setup/Test/Constraint/Extension/AssertVersionOnGrid.php b/dev/tests/functional/tests/app/Magento/Setup/Test/Constraint/Extension/AssertVersionOnGrid.php
index 068f748da4a8b..21ed8a24345f4 100644
--- a/dev/tests/functional/tests/app/Magento/Setup/Test/Constraint/Extension/AssertVersionOnGrid.php
+++ b/dev/tests/functional/tests/app/Magento/Setup/Test/Constraint/Extension/AssertVersionOnGrid.php
@@ -23,7 +23,7 @@ class AssertVersionOnGrid extends AbstractConstraint
     /*#@-*/
 
     /**
-     * Assert that that version of extension is correct.
+     * Assert that version of extension is correct.
      *
      * @param Grid $grid
      * @param Extension $extension
diff --git a/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetCmsPageLink.php b/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetCmsPageLink.php
index abda2231c935f..0aa6d39497a43 100644
--- a/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetCmsPageLink.php
+++ b/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetCmsPageLink.php
@@ -18,7 +18,7 @@
 class AssertWidgetCmsPageLink extends AbstractConstraint
 {
     /**
-     * Assert that created widget displayed on frontent on Home page and on Advanced Search and
+     * Assert that created widget displayed on frontend on Home page and on Advanced Search and
      * after click on widget link on frontend system redirects you to cms page.
      *
      * @param CmsIndex $cmsIndex
diff --git a/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetRecentlyViewedProducts.php b/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetRecentlyViewedProducts.php
index 67eeb0cdc238b..e6c25fdc52ed5 100644
--- a/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetRecentlyViewedProducts.php
+++ b/dev/tests/functional/tests/app/Magento/Widget/Test/Constraint/AssertWidgetRecentlyViewedProducts.php
@@ -16,7 +16,7 @@
 use Magento\Mtf\Constraint\AbstractConstraint;
 
 /**
- * Check that that widget with type Recently Viewed Products is present on category page
+ * Check that widget with type Recently Viewed Products is present on category page
  */
 class AssertWidgetRecentlyViewedProducts extends AbstractConstraint
 {
diff --git a/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/fixtures/theme/registration.php b/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/fixtures/theme/registration.php
index f3b30797b93ed..c286f6c57d87f 100644
--- a/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/fixtures/theme/registration.php
+++ b/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/fixtures/theme/registration.php
@@ -6,4 +6,4 @@
 
 use \Magento\Framework\Component\ComponentRegistrar;
 
-ComponentRegistrar::register(ComponentRegistrar::THEME, 'frontent/Test/theme', __DIR__);
+ComponentRegistrar::register(ComponentRegistrar::THEME, 'frontend/Test/theme', __DIR__);
diff --git a/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/patterns/paths_one.txt b/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/patterns/paths_one.txt
index 8f2df480aabc5..f9cd49de77d67 100644
--- a/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/patterns/paths_one.txt
+++ b/dev/tests/integration/testsuite/Magento/Framework/App/Utility/_files/patterns/paths_one.txt
@@ -1,2 +1,2 @@
 module Magento_Module *
-theme frontent/Test/theme One*
+theme frontend/Test/theme One*
diff --git a/dev/tests/integration/testsuite/Magento/Framework/GraphQl/Config/GraphQlReaderTest.php b/dev/tests/integration/testsuite/Magento/Framework/GraphQl/Config/GraphQlReaderTest.php
index d098e9bed4ffe..8583dcf3e4cd2 100644
--- a/dev/tests/integration/testsuite/Magento/Framework/GraphQl/Config/GraphQlReaderTest.php
+++ b/dev/tests/integration/testsuite/Magento/Framework/GraphQl/Config/GraphQlReaderTest.php
@@ -196,7 +196,7 @@ enumValues(includeDeprecated: true) {
                 'Missing type in the response'
             );
         }
-        //Checks to make sure that the the given description exists in the expectedOutput array
+        //Checks to make sure that the given description exists in the expectedOutput array
         $this->assertTrue(
             array_key_exists(
                 array_search(
diff --git a/dev/tests/static/framework/Magento/Sniffs/Less/PropertiesLineBreakSniff.php b/dev/tests/static/framework/Magento/Sniffs/Less/PropertiesLineBreakSniff.php
index a1fe346aae3b6..3f33d0b2c69d5 100644
--- a/dev/tests/static/framework/Magento/Sniffs/Less/PropertiesLineBreakSniff.php
+++ b/dev/tests/static/framework/Magento/Sniffs/Less/PropertiesLineBreakSniff.php
@@ -46,7 +46,7 @@ public function process(File $phpcsFile, $stackPtr)
         }
 
         if ($tokens[$prevPtr]['line'] === $tokens[$stackPtr]['line']) {
-            $error = 'Each propery must be on a line by itself';
+            $error = 'Each property must be on a line by itself';
             $phpcsFile->addError($error, $stackPtr, 'SameLine');
         }
     }
diff --git a/lib/internal/Magento/Framework/Console/QuestionPerformer/YesNo.php b/lib/internal/Magento/Framework/Console/QuestionPerformer/YesNo.php
index b46612df59296..58606bb38914d 100644
--- a/lib/internal/Magento/Framework/Console/QuestionPerformer/YesNo.php
+++ b/lib/internal/Magento/Framework/Console/QuestionPerformer/YesNo.php
@@ -66,7 +66,7 @@ public function execute(array $messages, InputInterface $input, OutputInterface
     }
 
     /**
-     * Creates Question object from from given array of messages.
+     * Creates Question object from given array of messages.
      *
      * @param string[] $messages array of messages
      * @return Question
diff --git a/lib/internal/Magento/Framework/DB/TemporaryTableService.php b/lib/internal/Magento/Framework/DB/TemporaryTableService.php
index 479cd0c6fddb9..03c1a9b9aa7f6 100644
--- a/lib/internal/Magento/Framework/DB/TemporaryTableService.php
+++ b/lib/internal/Magento/Framework/DB/TemporaryTableService.php
@@ -10,7 +10,7 @@
 
 /**
  * Class TemporaryTableService creates a temporary table in mysql from a Magento\Framework\DB\Select.
- * Use this class to create an index with that that you want to query later for quick data access
+ * Use this class to create an index with that you want to query later for quick data access
  *
  * @api
  * @since 100.2.0
diff --git a/lib/web/mage/utils/objects.js b/lib/web/mage/utils/objects.js
index d0b77aa4320e3..bd0e496339ace 100644
--- a/lib/web/mage/utils/objects.js
+++ b/lib/web/mage/utils/objects.js
@@ -83,7 +83,7 @@ define([
      * @private
      *
      * @param {Object} parent - Object from which to remove property.
-     * @param {Array} path - Splitted path to the propery.
+     * @param {Array} path - Splitted path to the property.
      */
     function removeNested(parent, path) {
         var field = path.pop();
diff --git a/lib/web/mage/validation/url.js b/lib/web/mage/validation/url.js
index 67e0e989d248e..00ac3fd4eb15d 100644
--- a/lib/web/mage/validation/url.js
+++ b/lib/web/mage/validation/url.js
@@ -42,7 +42,7 @@ define([], function () {
         /**
          * Sanitize url, replacing disallowed chars
          *
-         * @param {Sring} path - url to be normalized
+         * @param {String} path - url to be normalized
          * @returns {String}
          */
         sanitize: function (path) {
diff --git a/lib/web/prototype/windows/README b/lib/web/prototype/windows/README
index e2cb960834593..44da88b6adec5 100644
--- a/lib/web/prototype/windows/README
+++ b/lib/web/prototype/windows/README
@@ -133,7 +133,7 @@ See samples/index.html for more details and go on my web page : http://prototype
             - Add Windows.focusedWindow and  Windows.closeAll
             - Add name to iframe in case of url window
             - Clean up code, use _ for private function (just name convention)
-            - Add Dialog.info function, usefull for for submit or notice info (in Rails)
+            - Add Dialog.info function, usefull for submit or notice info (in Rails)
             - Add minimize and maximize buttons
             - Add alert_lite.css without any images
             - Debug
diff --git a/setup/performance-toolkit/README.md b/setup/performance-toolkit/README.md
index 700f6cd0d775d..bb0a023ab8af1 100644
--- a/setup/performance-toolkit/README.md
+++ b/setup/performance-toolkit/README.md
@@ -116,7 +116,7 @@ To get more details about available JMeter options, read [Non-GUI Mode](http://j
 For example, you can run the B2C scenario via console with 90 threads for the Frontend Pool and 10 threads for the Admin Pool:
 
     cd {JMeter path}/bin/
-    jmeter -n -t {path to peformance toolkit}/benchmark.jmx -j ./jmeter.log -l ./jmeter-results.jtl -Jhost=magento2.dev -Jbase_path=/ -Jadmin_path=admin -JfrontendPoolUsers=90 -JadminPoolUsers=10
+    jmeter -n -t {path to performance toolkit}/benchmark.jmx -j ./jmeter.log -l ./jmeter-results.jtl -Jhost=magento2.dev -Jbase_path=/ -Jadmin_path=admin -JfrontendPoolUsers=90 -JadminPoolUsers=10
 
 As a result, you will get `jmeter.log` and `jmeter-results.jtl`. The`jmeter.log` contains information about the test run and can be helpful in determining the cause of an error.  The JTL file is a text file containing the results of a test run. It can be opened in the GUI mode to perform analysis of the results (see the *Output* section below).