diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
index 7e59fbe5..8c5ccb74 100644
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@@ -4950,7 +4950,7 @@ Pair(FirstMatcher first_matcher, SecondMatcher second_matcher) {
 namespace no_adl {
 // Conditional() creates a matcher that conditionally uses either the first or
 // second matcher provided. For example, we could create an `equal if, and only
-// if' matcher using the Conditonal wrapper as follows:
+// if' matcher using the Conditional wrapper as follows:
 //
 //   EXPECT_THAT(result, Conditional(condition, Eq(expected), Ne(expected)));
 template <typename MatcherTrue, typename MatcherFalse>
diff --git a/googlemock/include/gmock/gmock-spec-builders.h b/googlemock/include/gmock/gmock-spec-builders.h
index b46cebe5..eb45abac 100644
--- a/googlemock/include/gmock/gmock-spec-builders.h
+++ b/googlemock/include/gmock/gmock-spec-builders.h
@@ -888,7 +888,7 @@ class GTEST_API_ ExpectationBase {
   mutable Mutex mutex_;  // Protects action_count_checked_.
 };  // class ExpectationBase
 
-// Impements an expectation for the given function type.
+// Implements an expectation for the given function type.
 template <typename F>
 class TypedExpectation : public ExpectationBase {
  public:
diff --git a/googlemock/test/gmock-actions_test.cc b/googlemock/test/gmock-actions_test.cc
index e1ca7fe2..fc628937 100644
--- a/googlemock/test/gmock-actions_test.cc
+++ b/googlemock/test/gmock-actions_test.cc
@@ -384,7 +384,7 @@ TEST(ActionInterfaceTest, MakeAction) {
   EXPECT_EQ(5, action.Perform(std::make_tuple(true, 5)));
 }
 
-// Tests that Action<F> can be contructed from a pointer to
+// Tests that Action<F> can be constructed from a pointer to
 // ActionInterface<F>.
 TEST(ActionTest, CanBeConstructedFromActionInterface) {
   Action<MyGlobalFunction> action(new MyActionImpl);
diff --git a/googletest/src/gtest-death-test.cc b/googletest/src/gtest-death-test.cc
index 52af2c79..87d5e9b9 100644
--- a/googletest/src/gtest-death-test.cc
+++ b/googletest/src/gtest-death-test.cc
@@ -799,8 +799,8 @@ DeathTest::TestRole WindowsDeathTest::AssumeRole() {
   GTEST_DEATH_TEST_CHECK_(
       ::CreateProcessA(
           executable_path, const_cast<char*>(command_line.c_str()),
-          nullptr,  // Retuned process handle is not inheritable.
-          nullptr,  // Retuned thread handle is not inheritable.
+          nullptr,  // Returned process handle is not inheritable.
+          nullptr,  // Returned thread handle is not inheritable.
           TRUE,  // Child inherits all inheritable handles (for write_handle_).
           0x0,   // Default creation flags.
           nullptr,  // Inherit the parent's environment.
diff --git a/googletest/src/gtest.cc b/googletest/src/gtest.cc
index 6c5321aa..3bff676a 100644
--- a/googletest/src/gtest.cc
+++ b/googletest/src/gtest.cc
@@ -177,7 +177,7 @@ const char kStackTraceMarker[] = "\nStack trace:\n";
 // is specified on the command line.
 bool g_help_flag = false;
 
-// Utilty function to Open File for Writing
+// Utility function to Open File for Writing
 static FILE* OpenFileForWriting(const std::string& output_file) {
   FILE* fileout = nullptr;
   FilePath output_file_path(output_file);
@@ -443,7 +443,7 @@ void AssertHelper::operator=(const Message& message) const {
 namespace {
 
 // When TEST_P is found without a matching INSTANTIATE_TEST_SUITE_P
-// to creates test cases for it, a syntetic test case is
+// to creates test cases for it, a synthetic test case is
 // inserted to report ether an error or a log message.
 //
 // This configuration bit will likely be removed at some point.
diff --git a/googletest/test/gtest_unittest.cc b/googletest/test/gtest_unittest.cc
index 3f2f082f..c0d2d99e 100644
--- a/googletest/test/gtest_unittest.cc
+++ b/googletest/test/gtest_unittest.cc
@@ -2017,7 +2017,7 @@ void ExpectNonFatalFailureRecordingPropertyWithReservedKeyOutsideOfTestSuite(
 }
 
 // Tests that property recording functions in UnitTest outside of tests
-// functions correcly.  Creating a separate instance of UnitTest ensures it
+// functions correctly.  Creating a separate instance of UnitTest ensures it
 // is in a state similar to the UnitTest's singleton's between tests.
 class UnitTestRecordPropertyTest :
     public testing::internal::UnitTestRecordPropertyTestHelper {