diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 42323344145..bc07d84b02d 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -335,14 +335,15 @@ available.  They are listed here in alphabetical order.
       Using :func:`divmod` with complex numbers is deprecated.
 
 
-.. function:: enumerate(iterable)
+.. function:: enumerate(sequence)
 
-   Return an enumerate object. *iterable* must be a sequence, an :term:`iterator`, or some
-   other object which supports iteration.  The :meth:`next` method of the iterator
-   returned by :func:`enumerate` returns a tuple containing a count (from zero) and
-   the corresponding value obtained from iterating over *iterable*.
-   :func:`enumerate` is useful for obtaining an indexed series: ``(0, seq[0])``,
-   ``(1, seq[1])``, ``(2, seq[2])``, .... For example:
+   Return an enumerate object. *sequence* must be a sequence, an
+   :term:`iterator`, or some other object which supports iteration.  The
+   :meth:`next` method of the iterator returned by :func:`enumerate` returns a
+   tuple containing a count (from zero) and the corresponding value obtained
+   from iterating over *iterable*.  :func:`enumerate` is useful for obtaining an
+   indexed series: ``(0, seq[0])``, ``(1, seq[1])``, ``(2, seq[2])``, .... For
+   example:
 
       >>> for i, season in enumerate(['Spring', 'Summer', 'Fall', 'Winter']):
       ...     print i, season