Update Doc/library/functions.rst

AA-Turner · terryjreedy · web-flow · commit 94cc645bd936 · 2025-08-12T00:33:09.000+01:00
Co-authored-by: Terry Jan Reedy &lt;tjreedy@udel.edu&gt;
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
@@ -1105,7 +1105,7 @@ are always available.  They are listed here in alphabetical order.
 
    Return an :term:`iterator` object.  The first argument is interpreted very
    differently depending on the presence of the second argument. Without a
-   second argument, the sinle argument must be a collection object which supports the
+   second argument, the single argument must be a collection object which supports the
    :term:`iterable` protocol (the :meth:`~object.__iter__` method),
    or it must support
    the sequence protocol (the :meth:`~object.__getitem__` method with integer arguments
