Terminology fix: exceptions are raised, except in generator.throw().
diff --git a/Doc/library/io.rst b/Doc/library/io.rst
index 498cbc8..0826ebd 100644
--- a/Doc/library/io.rst
+++ b/Doc/library/io.rst
@@ -17,7 +17,7 @@
At the top of the I/O hierarchy is the abstract base class :class:`IOBase`. It
defines the basic interface to a stream. Note, however, that there is no
separation between reading and writing to streams; implementations are allowed
-to throw an :exc:`IOError` if they do not support a given operation.
+to raise an :exc:`IOError` if they do not support a given operation.
Extending :class:`IOBase` is :class:`RawIOBase` which deals simply with the
reading and writing of raw bytes to a stream. :class:`FileIO` subclasses