diff --git a/lib/eslint/eslint.js b/lib/eslint/eslint.js
index a51ffbfe41a..0bd7a41c6fd 100644
--- a/lib/eslint/eslint.js
+++ b/lib/eslint/eslint.js
@@ -272,7 +272,7 @@ function processOptions({
         errors.push("'rulePaths' must be an array of non-empty strings.");
     }
     if (typeof useEslintrc !== "boolean") {
-        errors.push("'useElintrc' must be a boolean.");
+        errors.push("'useEslintrc' must be a boolean.");
     }
 
     if (errors.length > 0) {
@@ -563,7 +563,7 @@ class ESLint {
 
     /**
      * Returns the formatter representing the given formatter name.
-     * @param {string} [name] The name of the formattter to load.
+     * @param {string} [name] The name of the formatter to load.
      * The following values are allowed:
      * - `undefined` ... Load `stylish` builtin formatter.
      * - A builtin formatter name ... Load the builtin formatter.
diff --git a/lib/rules/arrow-body-style.js b/lib/rules/arrow-body-style.js
index 7b318ea8b3a..b2167fde77b 100644
--- a/lib/rules/arrow-body-style.js
+++ b/lib/rules/arrow-body-style.js
@@ -191,7 +191,7 @@ module.exports = {
                             }
 
                             /*
-                             * If the first token of the reutrn value is `{` or the return value is a sequence expression,
+                             * If the first token of the return value is `{` or the return value is a sequence expression,
                              * enclose the return value by parentheses to avoid syntax error.
                              */
                             if (astUtils.isOpeningBraceToken(firstValueToken) || blockBody[0].argument.type === "SequenceExpression" || (funcInfo.hasInOperator && isInsideForLoopInitializer(node))) {
diff --git a/lib/rules/callback-return.js b/lib/rules/callback-return.js
index ba13c9a6481..fa66e6383b7 100644
--- a/lib/rules/callback-return.js
+++ b/lib/rules/callback-return.js
@@ -59,9 +59,9 @@ module.exports = {
         }
 
         /**
-         * Check to see if a node contains only identifers
+         * Check to see if a node contains only identifiers
          * @param {ASTNode} node The node to check
-         * @returns {boolean} Whether or not the node contains only identifers
+         * @returns {boolean} Whether or not the node contains only identifiers
          */
         function containsOnlyIdentifiers(node) {
             if (node.type === "Identifier") {
diff --git a/lib/rules/dot-location.js b/lib/rules/dot-location.js
index 0a739b1712b..a8d5a760562 100644
--- a/lib/rules/dot-location.js
+++ b/lib/rules/dot-location.js
@@ -46,7 +46,7 @@ module.exports = {
         const sourceCode = context.getSourceCode();
 
         /**
-         * Reports if the dot between object and property is on the correct loccation.
+         * Reports if the dot between object and property is on the correct location.
          * @param {ASTNode} node The `MemberExpression` node.
          * @returns {void}
          */
diff --git a/lib/rules/func-call-spacing.js b/lib/rules/func-call-spacing.js
index 8fe690d4a6b..132a5833143 100644
--- a/lib/rules/func-call-spacing.js
+++ b/lib/rules/func-call-spacing.js
@@ -131,7 +131,7 @@ module.exports = {
                             return null;
                         }
 
-                        // If `?.` exsits, it doesn't hide no-undexpected-multiline errors
+                        // If `?.` exists, it doesn't hide no-unexpected-multiline errors
                         if (node.optional) {
                             return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], "?.");
                         }
@@ -177,7 +177,7 @@ module.exports = {
                         /*
                          * Only autofix if there is no newline
                          * https://github.com/eslint/eslint/issues/7787
-                         * But if `?.` exsits, it doesn't hide no-undexpected-multiline errors
+                         * But if `?.` exists, it doesn't hide no-unexpected-multiline errors
                          */
                         if (!node.optional) {
                             return null;
diff --git a/lib/rules/no-extend-native.js b/lib/rules/no-extend-native.js
index db365b50924..2a804b56398 100644
--- a/lib/rules/no-extend-native.js
+++ b/lib/rules/no-extend-native.js
@@ -138,7 +138,7 @@ module.exports = {
             }
 
             /*
-             * `identifierNode.parent` is a MamberExpression `*.prototype`.
+             * `identifierNode.parent` is a MemberExpression `*.prototype`.
              * If it's an optional member access, it may be wrapped by a `ChainExpression` node.
              */
             const prototypeNode =
diff --git a/lib/rules/no-import-assign.js b/lib/rules/no-import-assign.js
index 7a349bb730b..41060d8ac9e 100644
--- a/lib/rules/no-import-assign.js
+++ b/lib/rules/no-import-assign.js
@@ -97,10 +97,10 @@ function isIterationVariable(node) {
  * - `Object.defineProperties`
  * - `Object.freeze`
  * - `Object.setPrototypeOf`
- * - `Refrect.defineProperty`
- * - `Refrect.deleteProperty`
- * - `Refrect.set`
- * - `Refrect.setPrototypeOf`
+ * - `Reflect.defineProperty`
+ * - `Reflect.deleteProperty`
+ * - `Reflect.set`
+ * - `Reflect.setPrototypeOf`
  * @param {ASTNode} node The node to check.
  * @param {Scope} scope A `escope.Scope` object to find variable (whichever).
  * @returns {boolean} `true` if the node is at the first argument of a well-known mutation function.
diff --git a/lib/rules/no-restricted-exports.js b/lib/rules/no-restricted-exports.js
index 6031e26de2c..f0df0ffaedb 100644
--- a/lib/rules/no-restricted-exports.js
+++ b/lib/rules/no-restricted-exports.js
@@ -45,7 +45,7 @@ module.exports = {
 
         /**
          * Checks and reports given exported identifier.
-         * @param {ASTNode} node exported `Identifer` node to check.
+         * @param {ASTNode} node exported `Identifier` node to check.
          * @returns {void}
          */
         function checkExportedName(node) {
diff --git a/lib/rules/no-this-before-super.js b/lib/rules/no-this-before-super.js
index 44288c0c971..5bfba66fc65 100644
--- a/lib/rules/no-this-before-super.js
+++ b/lib/rules/no-this-before-super.js
@@ -171,7 +171,7 @@ module.exports = {
             /**
              * Removes the top of stack item.
              *
-             * And this treverses all segments of this code path then reports every
+             * And this traverses all segments of this code path then reports every
              * invalid node.
              * @param {CodePath} codePath A code path which was ended.
              * @returns {void}
diff --git a/lib/rules/prefer-destructuring.js b/lib/rules/prefer-destructuring.js
index b2d3c8a0b01..413f7272cc1 100644
--- a/lib/rules/prefer-destructuring.js
+++ b/lib/rules/prefer-destructuring.js
@@ -279,7 +279,7 @@ module.exports = {
          * @param {ASTNode} node the AssignmentExpression node
          * @returns {void}
          */
-        function checkAssigmentExpression(node) {
+        function checkAssignmentExpression(node) {
             if (node.operator === "=") {
                 performCheck(node.left, node.right, node);
             }
@@ -291,7 +291,7 @@ module.exports = {
 
         return {
             VariableDeclarator: checkVariableDeclarator,
-            AssignmentExpression: checkAssigmentExpression
+            AssignmentExpression: checkAssignmentExpression
         };
     }
 };
diff --git a/lib/rules/prefer-reflect.js b/lib/rules/prefer-reflect.js
index fb2de923bea..156d61251c4 100644
--- a/lib/rules/prefer-reflect.js
+++ b/lib/rules/prefer-reflect.js
@@ -105,10 +105,10 @@ module.exports = {
             CallExpression(node) {
                 const methodName = (node.callee.property || {}).name;
                 const isReflectCall = (node.callee.object || {}).name === "Reflect";
-                const hasReflectSubsitute = Object.prototype.hasOwnProperty.call(reflectSubstitutes, methodName);
+                const hasReflectSubstitute = Object.prototype.hasOwnProperty.call(reflectSubstitutes, methodName);
                 const userConfiguredException = exceptions.indexOf(methodName) !== -1;
 
-                if (hasReflectSubsitute && !isReflectCall && !userConfiguredException) {
+                if (hasReflectSubstitute && !isReflectCall && !userConfiguredException) {
                     report(node, existingNames[methodName], reflectSubstitutes[methodName]);
                 }
             },
diff --git a/lib/rules/space-unary-ops.js b/lib/rules/space-unary-ops.js
index f417eea58d8..57f6e784501 100644
--- a/lib/rules/space-unary-ops.js
+++ b/lib/rules/space-unary-ops.js
@@ -1,5 +1,5 @@
 /**
- * @fileoverview This rule shoud require or disallow spaces before or after unary operations.
+ * @fileoverview This rule should require or disallow spaces before or after unary operations.
  * @author Marcin Kumorek
  */
 "use strict";
diff --git a/lib/rules/utils/ast-utils.js b/lib/rules/utils/ast-utils.js
index 1fd6340df7c..679eebb4c45 100644
--- a/lib/rules/utils/ast-utils.js
+++ b/lib/rules/utils/ast-utils.js
@@ -82,7 +82,7 @@ function startsWithUpperCase(s) {
 /**
  * Checks whether or not a node is a constructor.
  * @param {ASTNode} node A function node to check.
- * @returns {boolean} Wehether or not a node is a constructor.
+ * @returns {boolean} Whether or not a node is a constructor.
  */
 function isES5Constructor(node) {
     return (node.id && startsWithUpperCase(node.id.name));
@@ -1574,7 +1574,7 @@ module.exports = {
     },
 
     /*
-     * Determine if a node has a possiblity to be an Error object
+     * Determine if a node has a possibility to be an Error object
      * @param  {ASTNode} node  ASTNode to check
      * @returns {boolean} True if there is a chance it contains an Error obj
      */
diff --git a/lib/shared/deprecation-warnings.js b/lib/shared/deprecation-warnings.js
index e1481a2e9aa..1438eaa69bf 100644
--- a/lib/shared/deprecation-warnings.js
+++ b/lib/shared/deprecation-warnings.js
@@ -15,7 +15,7 @@ const lodash = require("lodash");
 // Private
 //------------------------------------------------------------------------------
 
-// Defitions for deprecation warnings.
+// Definitions for deprecation warnings.
 const deprecationWarningMessages = {
     ESLINT_LEGACY_ECMAFEATURES:
         "The 'ecmaFeatures' config file property is deprecated and has no effect.",
diff --git a/lib/shared/types.js b/lib/shared/types.js
index 8ad3b1b64ce..c3b76e42d5f 100644
--- a/lib/shared/types.js
+++ b/lib/shared/types.js
@@ -46,9 +46,9 @@ module.exports = {};
 /**
  * @typedef {Object} OverrideConfigData
  * @property {Record<string, boolean>} [env] The environment settings.
- * @property {string | string[]} [excludedFiles] The glob pattarns for excluded files.
+ * @property {string | string[]} [excludedFiles] The glob patterns for excluded files.
  * @property {string | string[]} [extends] The path to other config files or the package name of shareable configs.
- * @property {string | string[]} files The glob pattarns for target files.
+ * @property {string | string[]} files The glob patterns for target files.
  * @property {Record<string, GlobalConf>} [globals] The global variable settings.
  * @property {boolean} [noInlineConfig] The flag that disables directive comments.
  * @property {OverrideConfigData[]} [overrides] The override settings per kind of files.
diff --git a/tests/lib/eslint/eslint.js b/tests/lib/eslint/eslint.js
index e4f37f404c4..530464ecaa1 100644
--- a/tests/lib/eslint/eslint.js
+++ b/tests/lib/eslint/eslint.js
@@ -208,7 +208,7 @@ describe("ESLint", () => {
                     "- 'reportUnusedDisableDirectives' must be any of \"error\", \"warn\", \"off\", and null.",
                     "- 'resolvePluginsRelativeTo' must be a non-empty string or null.",
                     "- 'rulePaths' must be an array of non-empty strings.",
-                    "- 'useElintrc' must be a boolean."
+                    "- 'useEslintrc' must be a boolean."
                 ].join("\n")), "u")
             );
         });