diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index 124882420c255c..e0d6c77ba7bde8 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -2753,8 +2753,8 @@ def __init__(self, master=None, cnf={}, **kw):
 
         Valid resource names: background, bd, bg, borderwidth, class,
         colormap, container, cursor, height, highlightbackground,
-        highlightcolor, highlightthickness, menu, relief, screen, takefocus,
-        use, visual, width."""
+        highlightcolor, highlightthickness, menu, padx, pady, relief,
+        screen, takefocus, use, visual, width."""
         if kw:
             cnf = _cnfmerge((cnf, kw))
         extra = ()
@@ -3141,12 +3141,13 @@ def __init__(self, master=None, cnf={}, **kw):
         """Construct a checkbutton widget with the parent MASTER.
 
         Valid resource names: activebackground, activeforeground, anchor,
-        background, bd, bg, bitmap, borderwidth, command, cursor,
+        background, bd, bg, bitmap, borderwidth, command, compound, cursor,
         disabledforeground, fg, font, foreground, height,
         highlightbackground, highlightcolor, highlightthickness, image,
-        indicatoron, justify, offvalue, onvalue, padx, pady, relief,
-        selectcolor, selectimage, state, takefocus, text, textvariable,
-        underline, variable, width, wraplength."""
+        indicatoron, justify, offrelief, offvalue, onvalue, overrelief,
+        padx, pady, relief, selectcolor, selectimage, state, takefocus,
+        text, textvariable, tristateimage, tristatevalue, underline,
+        variable, width, wraplength."""
         Widget.__init__(self, master, 'checkbutton', cnf, kw)
 
     def _setup(self, master, cnf):
@@ -3185,10 +3186,11 @@ def __init__(self, master=None, cnf={}, **kw):
         """Construct an entry widget with the parent MASTER.
 
         Valid resource names: background, bd, bg, borderwidth, cursor,
-        exportselection, fg, font, foreground, highlightbackground,
-        highlightcolor, highlightthickness, insertbackground,
-        insertborderwidth, insertofftime, insertontime, insertwidth,
-        invalidcommand, invcmd, justify, relief, selectbackground,
+        disabledbackground, disabledforeground, exportselection,
+        fg, font, foreground, highlightbackground, highlightcolor,
+        highlightthickness, insertbackground, insertborderwidth,
+        insertofftime, insertontime, insertwidth, invalidcommand,
+        invcmd, justify, readonlybackground, relief, selectbackground,
         selectborderwidth, selectforeground, show, state, takefocus,
         textvariable, validate, validatecommand, vcmd, width,
         xscrollcommand."""
@@ -3272,7 +3274,8 @@ def __init__(self, master=None, cnf={}, **kw):
 
         Valid resource names: background, bd, bg, borderwidth, class,
         colormap, container, cursor, height, highlightbackground,
-        highlightcolor, highlightthickness, relief, takefocus, visual, width."""
+        highlightcolor, highlightthickness, padx, pady, relief, takefocus,
+        visual, width."""
         cnf = _cnfmerge((cnf, kw))
         extra = ()
         if 'class_' in cnf:
@@ -3293,8 +3296,8 @@ def __init__(self, master=None, cnf={}, **kw):
         STANDARD OPTIONS
 
             activebackground, activeforeground, anchor,
-            background, bitmap, borderwidth, cursor,
-            disabledforeground, font, foreground,
+            background, bitmap, borderwidth, compound,
+            cursor, disabledforeground, font, foreground,
             highlightbackground, highlightcolor,
             highlightthickness, image, justify,
             padx, pady, relief, takefocus, text,
@@ -3314,11 +3317,12 @@ class Listbox(Widget, XView, YView):
     def __init__(self, master=None, cnf={}, **kw):
         """Construct a listbox widget with the parent MASTER.
 
-        Valid resource names: background, bd, bg, borderwidth, cursor,
-        exportselection, fg, font, foreground, height, highlightbackground,
-        highlightcolor, highlightthickness, relief, selectbackground,
-        selectborderwidth, selectforeground, selectmode, setgrid, takefocus,
-        width, xscrollcommand, yscrollcommand, listvariable."""
+        Valid resource names: activestyle, background, bd, bg, borderwidth,
+        cursor, disabledforeground, exportselection, fg, font, foreground,
+        height, highlightbackground, highlightcolor, highlightthickness,
+        justify, listvariable, relief, selectbackground, selectborderwidth,
+        selectforeground, selectmode, setgrid, state, takefocus, width,
+        xscrollcommand, yscrollcommand."""
         Widget.__init__(self, master, 'listbox', cnf, kw)
 
     def activate(self, index):
@@ -3574,12 +3578,12 @@ def __init__(self, master=None, cnf={}, **kw):
         """Construct a radiobutton widget with the parent MASTER.
 
         Valid resource names: activebackground, activeforeground, anchor,
-        background, bd, bg, bitmap, borderwidth, command, cursor,
-        disabledforeground, fg, font, foreground, height,
-        highlightbackground, highlightcolor, highlightthickness, image,
-        indicatoron, justify, padx, pady, relief, selectcolor, selectimage,
-        state, takefocus, text, textvariable, underline, value, variable,
-        width, wraplength."""
+        background, bd, bg, bitmap, borderwidth, command, compound, cursor,
+        disabledforeground, fg, font, foreground, height, highlightbackground,
+        highlightcolor, highlightthickness, image, indicatoron, justify,
+        offrelief, overrelief, padx, pady, relief, selectcolor, selectimage,
+        state, takefocus, text, textvariable, tristateimage, tristatevalue,
+        underline, value, variable, width, wraplength."""
         Widget.__init__(self, master, 'radiobutton', cnf, kw)
 
     def deselect(self):
@@ -3697,22 +3701,22 @@ def __init__(self, master=None, cnf={}, **kw):
 
         STANDARD OPTIONS
 
-            background, borderwidth, cursor,
-            exportselection, font, foreground,
-            highlightbackground, highlightcolor,
-            highlightthickness, insertbackground,
-            insertborderwidth, insertofftime,
-            insertontime, insertwidth, padx, pady,
-            relief, selectbackground,
+            background, blockcursor, borderwidth,
+            cursor, endine, exportselection, font,
+            foreground, highlightbackground, highlightcolor,
+            highlightthickness, inactiveselectbackground,
+            insertbackground, insertborderwidth,
+            insertofftime, insertontime, insertunfocused,
+            insertwidth, padx, pady, relief, selectbackground,
             selectborderwidth, selectforeground,
-            setgrid, takefocus,
-            xscrollcommand, yscrollcommand,
+            setgrid, startline, tabstyle, takefocus,
+            xscrollcommand, yscrollcommand.
 
         WIDGET-SPECIFIC OPTIONS
 
             autoseparators, height, maxundo,
             spacing1, spacing2, spacing3,
-            state, tabs, undo, width, wrap,
+            state, tabs, undo, width, wrap.
 
         """
         Widget.__init__(self, master, 'text', cnf, kw)
@@ -4330,8 +4334,8 @@ def __init__(self, master=None, cnf={}, **kw):
             insertborderwidth, insertofftime,
             insertontime, insertwidth, justify, relief,
             repeatdelay, repeatinterval,
-            selectbackground, selectborderwidth
-            selectforeground, takefocus, textvariable
+            selectbackground, selectborderwidth,
+            selectforeground, takefocus, textvariable,
             xscrollcommand.
 
         WIDGET-SPECIFIC OPTIONS
@@ -4342,8 +4346,8 @@ def __init__(self, master=None, cnf={}, **kw):
             disabledforeground, format, from,
             invalidcommand, increment,
             readonlybackground, state, to,
-            validate, validatecommand values,
-            width, wrap,
+            validate, validatecommand, values,
+            width, wrap.
         """
         Widget.__init__(self, master, 'spinbox', cnf, kw)
 
@@ -4526,13 +4530,14 @@ def __init__(self, master=None, cnf={}, **kw):
         STANDARD OPTIONS
 
             background, borderwidth, cursor, height,
-            orient, relief, width
+            orient, proxybackground, proxyborderwidth,
+            proxyrelief, relief, width.
 
         WIDGET-SPECIFIC OPTIONS
 
             handlepad, handlesize, opaqueresize,
             sashcursor, sashpad, sashrelief,
-            sashwidth, showhandle,
+            sashwidth, showhandle.
         """
         Widget.__init__(self, master, 'panedwindow', cnf, kw)
 
diff --git a/Misc/NEWS.d/next/Library/2020-06-24-08-44-06.bpo-34154.coStMk.rst b/Misc/NEWS.d/next/Library/2020-06-24-08-44-06.bpo-34154.coStMk.rst
new file mode 100644
index 00000000000000..1c44a1e0a05797
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-06-24-08-44-06.bpo-34154.coStMk.rst
@@ -0,0 +1 @@
+Improve the docstrings in the :mod:`tkinter` module.