Dictionary
a•ha
Pronunciation: (ä-hä', u-hä'), [key]—
interj.
(used as an exclamation of triumph, mockery, contempt, irony, surprise, etc., according to the manner of utterance.)
AHA
American Heart Association.
A.H.A.
1. American Historical Association.
2. American Hospital Association.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.