diff --git a/Lib/test/test_cmd_line.py b/Lib/test/test_cmd_line.py
index dce418b..3d2f769 100644
--- a/Lib/test/test_cmd_line.py
+++ b/Lib/test/test_cmd_line.py
@@ -465,7 +465,7 @@
         rc, out, err = assert_python_ok('-I', '-c',
             'from sys import flags as f; '
             'print(f.no_user_site, f.ignore_environment, f.isolated)',
-            # dummyvar to prevent extranous -E
+            # dummyvar to prevent extraneous -E
             dummyvar="")
         self.assertEqual(out.strip(), b'1 1 1')
         with test.support.temp_cwd() as tmpdir:
diff --git a/Lib/test/test_docxmlrpc.py b/Lib/test/test_docxmlrpc.py
index e6ca961..15a4ae2 100644
--- a/Lib/test/test_docxmlrpc.py
+++ b/Lib/test/test_docxmlrpc.py
@@ -164,7 +164,7 @@
     @make_request_and_skipIf(sys.flags.optimize >= 2,
                      "Docstrings are omitted with -O2 and above")
     def test_system_methods(self):
-        """Test the precense of three consecutive system.* methods.
+        """Test the presence of three consecutive system.* methods.
 
         This also tests their use of parameter type recognition and the
         systems related to that process.
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index c151a50..4b047ee 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -709,7 +709,7 @@
             raise socket.gaierror
 
     def testSendtoErrors(self):
-        # Testing that sendto doesn't masks failures. See #10169.
+        # Testing that sendto doesn't mask failures. See #10169.
         s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
         self.addCleanup(s.close)
         s.bind(('', 0))
diff --git a/Lib/threading.py b/Lib/threading.py
index c9f8cb6..06b7b9b 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -639,7 +639,7 @@
             self._break()
             raise
 
-    # Wait in the barrier until we are relased.  Raise an exception
+    # Wait in the barrier until we are released.  Raise an exception
     # if the barrier is reset or broken.
     def _wait(self, timeout):
         if not self._cond.wait_for(lambda : self._state != 0, timeout):
diff --git a/Lib/tkinter/ttk.py b/Lib/tkinter/ttk.py
index 0e5759d..f4a6d8c 100644
--- a/Lib/tkinter/ttk.py
+++ b/Lib/tkinter/ttk.py
@@ -151,7 +151,7 @@
 
 def _format_layoutlist(layout, indent=0, indent_size=2):
     """Formats a layout list so we can pass the result to ttk::style
-    layout and ttk::style settings. Note that the layout doesn't has to
+    layout and ttk::style settings. Note that the layout doesn't have to
     be a list necessarily.
 
     E.g.: