diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 0252085436..37271e9cb0 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -17,7 +17,7 @@ We must be able to understand the design of your change from this description. K
 
 ### Why should this be in core?
 
-<!-- Explain why this functionality should be in mocha as opposed to it's own package -->
+<!-- Explain why this functionality should be in mocha as opposed to its own package -->
 
 ### Benefits
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66e5aac8a2..af10c45e1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -863,7 +863,7 @@ Thanks @entertainyou, @SimenB, @just-paja for the heads-up.
   * utils.stringify should handle objects without an Object prototype
   * in runnable test, comparing to undefined error's message rather than a literal
   * Fix test running output truncation on async STDIO
-  * ammended for deprecated customFds option in child_process
+  * amended for deprecated customFds option in child_process
 
 2.1.0 / 2014-12-23
 ==================
@@ -1091,7 +1091,7 @@ Thanks @entertainyou, @SimenB, @just-paja for the heads-up.
 ==================
 
   * add: sort test files with --sort (#813)
-  * update: diff depedency to 1.0.7
+  * update: diff dependency to 1.0.7
   * update: glob dependency to 3.2.3 (#927)
   * fix: diffs show whitespace differences (#976)
   * fix: improve global leaks (#783)
diff --git a/lib/reporters/base.js b/lib/reporters/base.js
index 205488426a..5018e6f9c3 100644
--- a/lib/reporters/base.js
+++ b/lib/reporters/base.js
@@ -156,7 +156,7 @@ exports.cursor = {
 };
 
 /**
- * Outut the given `failures` as a list.
+ * Output the given `failures` as a list.
  *
  * @param {Array} failures
  * @api public
diff --git a/test/browser/ui.spec.js b/test/browser/ui.spec.js
index 159cab6d95..9b2addc92a 100644
--- a/test/browser/ui.spec.js
+++ b/test/browser/ui.spec.js
@@ -19,7 +19,7 @@ describe('$.jQuery', function () {
 });
 
 // another generic describe block to verify it is absent
-// when greeping on $.jQuery
+// when grepping on $.jQuery
 describe('@Array', function () {
   it('.pop()', function () {
     assert(true);
diff --git a/test/unit/ms.spec.js b/test/unit/ms.spec.js
index 189e126446..e7b1d358be 100644
--- a/test/unit/ms.spec.js
+++ b/test/unit/ms.spec.js
@@ -29,7 +29,7 @@ describe('.ms()', function () {
     });
   });
 
-  describe('minutess representation', function () {
+  describe('minutes representation', function () {
     it('should return short format', function () {
       expect(ms(time.minutes(1))).to.equal('1m');
     });