diff --git a/docs/reference/matchers.md b/docs/reference/matchers.md
index a541bf8..47d2808 100644
--- a/docs/reference/matchers.md
+++ b/docs/reference/matchers.md
@@ -238,7 +238,7 @@
 | `AnyOf(m1, m2, ..., mn)` | `argument` matches at least one of the matchers `m1` to `mn`. |
 | `AnyOfArray({m0, m1, ..., mn})`, `AnyOfArray(a_container)`, `AnyOfArray(begin, end)`, `AnyOfArray(array)`, or `AnyOfArray(array, count)` | The same as `AnyOf()` except that the matchers come from an initializer list, STL-style container, iterator range, or C-style array. |
 | `Not(m)` | `argument` doesn't match matcher `m`. |
-| `Conditional(cond, m1, m2)` | Matches matcher `m1` if `cond` evalutes to true, else matches `m2`.|
+| `Conditional(cond, m1, m2)` | Matches matcher `m1` if `cond` evaluates to true, else matches `m2`.|
 
 ## Adapters for Matchers
 
diff --git a/googlemock/include/gmock/gmock-matchers.h b/googlemock/include/gmock/gmock-matchers.h
index 0e4aa0b..d952369 100644
--- a/googlemock/include/gmock/gmock-matchers.h
+++ b/googlemock/include/gmock/gmock-matchers.h
@@ -5422,7 +5422,7 @@
 #define EXPECT_THAT(value, matcher) EXPECT_PRED_FORMAT1(\
     ::testing::internal::MakePredicateFormatterFromMatcher(matcher), value)
 
-// MATCHER* macroses itself are listed below.
+// MATCHER* macros itself are listed below.
 #define MATCHER(name, description)                                             \
   class name##Matcher                                                          \
       : public ::testing::internal::MatcherBaseImpl<name##Matcher> {           \
diff --git a/googlemock/include/gmock/gmock-spec-builders.h b/googlemock/include/gmock/gmock-spec-builders.h
index eb45aba..8e9f2f1 100644
--- a/googlemock/include/gmock/gmock-spec-builders.h
+++ b/googlemock/include/gmock/gmock-spec-builders.h
@@ -1508,7 +1508,7 @@
 
   // Performs the default action of this mock function on the given
   // arguments and returns the result. Asserts (or throws if
-  // exceptions are enabled) with a helpful call descrption if there
+  // exceptions are enabled) with a helpful call description if there
   // is no valid return value. This method doesn't depend on the
   // mutable state of this object, and thus can be called concurrently
   // without locking.
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index 4cec003..d1505bf 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -8405,7 +8405,7 @@
   // Explain with matchers
   const Matcher<int> g1 = AnyOfArray({GreaterThan(1)});
   const Matcher<int> g2 = AnyOfArray({GreaterThan(1), GreaterThan(2)});
-  // Explains the first positiv match and all prior negative matches...
+  // Explains the first positive match and all prior negative matches...
   EXPECT_EQ("which is 1 less than 1", Explain(g1, 0));
   EXPECT_EQ("which is the same as 1", Explain(g1, 1));
   EXPECT_EQ("which is 1 more than 1", Explain(g1, 2));
diff --git a/googletest/include/gtest/internal/gtest-internal.h b/googletest/include/gtest/internal/gtest-internal.h
index 02e0198..4e66667 100644
--- a/googletest/include/gtest/internal/gtest-internal.h
+++ b/googletest/include/gtest/internal/gtest-internal.h
@@ -508,11 +508,11 @@
 
 template <typename T>
 //  Note that SuiteApiResolver inherits from T because
-//  SetUpTestSuite()/TearDownTestSuite() could be protected. Ths way
+//  SetUpTestSuite()/TearDownTestSuite() could be protected. This way
 //  SuiteApiResolver can access them.
 struct SuiteApiResolver : T {
   // testing::Test is only forward declared at this point. So we make it a
-  // dependend class for the compiler to be OK with it.
+  // dependent class for the compiler to be OK with it.
   using Test =
       typename std::conditional<sizeof(T) != 0, ::testing::Test, void>::type;
 
diff --git a/googletest/include/gtest/internal/gtest-port.h b/googletest/include/gtest/internal/gtest-port.h
index 790fdd8..d3eab57 100644
--- a/googletest/include/gtest/internal/gtest-port.h
+++ b/googletest/include/gtest/internal/gtest-port.h
@@ -994,7 +994,7 @@
 //
 // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
 // is not satisfied.
-//  Synopsys:
+//  Synopsis:
 //    GTEST_CHECK_(boolean_condition);
 //     or
 //    GTEST_CHECK_(boolean_condition) << "Additional message";
@@ -1049,7 +1049,7 @@
 // const Foo*).  When you use ImplicitCast_, the compiler checks that
 // the cast is safe.  Such explicit ImplicitCast_s are necessary in
 // surprisingly many situations where C++ demands an exact type match
-// instead of an argument type convertable to a target type.
+// instead of an argument type convertible to a target type.
 //
 // The syntax for using ImplicitCast_ is the same as for static_cast:
 //
diff --git a/googletest/test/gtest_test_utils.py b/googletest/test/gtest_test_utils.py
index c7f25aa..13fc6f5 100755
--- a/googletest/test/gtest_test_utils.py
+++ b/googletest/test/gtest_test_utils.py
@@ -224,7 +224,7 @@
                                combined in a string.
     """
 
-    # The subprocess module is the preferrable way of running programs
+    # The subprocess module is the preferable way of running programs
     # since it is available and behaves consistently on all platforms,
     # including Windows. But it is only available starting in python 2.4.
     # In earlier python versions, we revert to the popen2 module, which is