--- a/Doc/library/stdtypes.rst	Wed Feb 15 23:45:34 2012 +0100
+++ b/Doc/library/stdtypes.rst	Wed Feb 15 22:51:26 2012 -0800
@@ -2767,10 +2767,11 @@
 The Ellipsis Object
 -------------------
 
-This object is commonly used by slicing (see :ref:`slicings`).  It supports no
-special operations.  There is exactly one ellipsis object, named
-:const:`Ellipsis` (a built-in name).  ``type(Ellipsis)()`` produces the
-:const:`Ellipsis` singleton.
+This object is commonly used by slicing (see :ref:`slicings`), but may also
+be used in other situations where a sentinel value other than :keyword:`None`
+is needed.  It supports no special operations.  There is exactly one ellipsis
+object, named :const:`Ellipsis` (a built-in name).  ``type(Ellipsis)()``
+produces the :const:`Ellipsis` singleton.
 
 It is written as ``Ellipsis`` or ``...``.