diff --git a/Lib/idlelib/configdialog.py b/Lib/idlelib/configdialog.py
index 31520a3..4aaec13 100644
--- a/Lib/idlelib/configdialog.py
+++ b/Lib/idlelib/configdialog.py
@@ -2225,7 +2225,7 @@
      'General': '''
 General:
 
-AutoComplete: Popupwait is milleseconds to wait after key char, without
+AutoComplete: Popupwait is milliseconds to wait after key char, without
 cursor movement, before popping up completion box.  Key char is '.' after
 identifier or a '/' (or '\\' on Windows) within a string.
 
diff --git a/Lib/idlelib/help.html b/Lib/idlelib/help.html
index 7e743e6..ba44331 100644
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -721,7 +721,7 @@
 <span class="pre">root</span> <span class="pre">=</span> <span class="pre">tk.Tk()</span></code> in standard Python and nothing appears.  Enter the same
 in IDLE and a tk window appears.  In standard Python, one must also enter
 <code class="docutils literal notranslate"><span class="pre">root.update()</span></code> to see the window.  IDLE does the equivalent in the
-background, about 20 times a second, which is about every 50 milleseconds.
+background, about 20 times a second, which is about every 50 milliseconds.
 Next enter <code class="docutils literal notranslate"><span class="pre">b</span> <span class="pre">=</span> <span class="pre">tk.Button(root,</span> <span class="pre">text='button');</span> <span class="pre">b.pack()</span></code>.  Again,
 nothing visibly changes in standard Python until one enters <code class="docutils literal notranslate"><span class="pre">root.update()</span></code>.</p>
 <p>Most tkinter programs run <code class="docutils literal notranslate"><span class="pre">root.mainloop()</span></code>, which usually does not
diff --git a/Lib/idlelib/help.py b/Lib/idlelib/help.py
index 0603ede..652444a 100644
--- a/Lib/idlelib/help.py
+++ b/Lib/idlelib/help.py
@@ -2,7 +2,7 @@
 Contents are subject to revision at any time, without notice.
 
 
-Help => About IDLE: diplay About Idle dialog
+Help => About IDLE: display About Idle dialog
 
 <to be moved here from help_about.py>
 
diff --git a/Lib/idlelib/idle_test/test_config.py b/Lib/idlelib/idle_test/test_config.py
index 7e2c1fd..255210d 100644
--- a/Lib/idlelib/idle_test/test_config.py
+++ b/Lib/idlelib/idle_test/test_config.py
@@ -521,7 +521,7 @@
     def test_get_keyset(self):
         conf = self.mock_config()
 
-        # Conflic with key set, should be disable to ''
+        # Conflict with key set, should be disable to ''
         conf.defaultCfg['extensions'].add_section('Foobar')
         conf.defaultCfg['extensions'].add_section('Foobar_cfgBindings')
         conf.defaultCfg['extensions'].set('Foobar', 'enable', 'True')