diff --git a/lib/mocha.js b/lib/mocha.js
index dc18b585a5..0b4aa5a4bd 100644
--- a/lib/mocha.js
+++ b/lib/mocha.js
@@ -807,7 +807,7 @@ Mocha.prototype.slow = function(msecs) {
  *
  * @public
  * @see [CLI option](../#-async-only-a)
- * @param {boolean} [asyncOnly=true] - Wether to force `done` callback or promise.
+ * @param {boolean} [asyncOnly=true] - Whether to force `done` callback or promise.
  * @return {Mocha} this
  * @chainable
  */
@@ -847,7 +847,7 @@ Mocha.prototype.allowUncaught = function(allowUncaught) {
  * Delays root suite execution.
  *
  * @description
- * Used to perform asynch operations before any suites are run.
+ * Used to perform async operations before any suites are run.
  *
  * @public
  * @see [delayed root suite](../#delayed-root-suite)
diff --git a/lib/nodejs/serializer.js b/lib/nodejs/serializer.js
index ac95bdc344..448cb52e45 100644
--- a/lib/nodejs/serializer.js
+++ b/lib/nodejs/serializer.js
@@ -56,7 +56,7 @@ class SerializableWorkerResult {
   /**
    * Instantiates a new {@link SerializableWorkerResult}.
    * @param {...any} args - Args to constructor
-   * @returns {SerilizableWorkerResult}
+   * @returns {SerializableWorkerResult}
    */
   static create(...args) {
     return new SerializableWorkerResult(...args);
diff --git a/lib/runner.js b/lib/runner.js
index cd91173e10..876d64fb24 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -206,7 +206,7 @@ Runner.prototype._addEventListener = function(target, eventName, listener) {
 /**
  * Replacement for `target.removeListener(eventName, listener)` that also updates the bookkeeping.
  * @param {EventEmitter} target - The `EventEmitter`
- * @param {string} eventName - The event anme
+ * @param {string} eventName - The event name
  * @param {function} listener - Listener function
  * @private
  */
diff --git a/lib/utils.js b/lib/utils.js
index 00d6fcc938..cf483760cf 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -508,7 +508,7 @@ exports.isPromise = function isPromise(value) {
  * Clamps a numeric value to an inclusive range.
  *
  * @param {number} value - Value to be clamped.
- * @param {numer[]} range - Two element array specifying [min, max] range.
+ * @param {number[]} range - Two element array specifying [min, max] range.
  * @returns {number} clamped value
  */
 exports.clamp = function clamp(value, range) {