Attu definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
westernmost island of the Aleutians: 338 sq mi (875 sq km)
Attu definition by American Heritage Dictionary
An island of southwest Alaska, the westernmost of the Aleutians. In World War II it was occupied by the Japanese from June 1942 until June 1943.