aha

a·ha

[ah-hah, uh-hah]
interjection
(used as an exclamation of triumph, mockery, contempt, irony, surprise, etc., according to the manner of utterance.)
Dictionary.com Unabridged

AHA

American Heart Association.
00:10
Aha is always a great word to know.
So is ninnyhammer. Does it mean:
a chattering or flighty, light-headed person.
a fool or simpleton; ninny.
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A.H.A.

1.
American Historical Association.
2.
American Hospital Association.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
aha (ɑːˈhɑː) [Click for IPA pronunciation guide]
 
—interj
an exclamation expressing triumph, surprise, etc, according to the intonation of the speaker

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

aha
exclamation of surprise or delighted discovery, late 14c., from ah + ha.
"They crieden out! ... A ha the fox! and after him thay ran." [Chaucer]
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
AHA

  1. American Heart Association

  2. American Historical Association

  3. American Hospital Association

  4. American Hyperlexia Association

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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