[hah]
noun
the 26th letter of the Arabic alphabet, representing a glottal spirant consonant sound.

Origin:
< Arabic

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World English Dictionary
ha or hah1 (hɑː)
 
interj
1.  an exclamation expressing derision, triumph, surprise, etc, according to the intonation of the speaker
2.  (reiterated) a representation of the sound of laughter
 
hah or hah1
 
interj

ha2
 
symbol for
hectare

Ha
 
abbreviation for
Hawaii

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

ha
c.1300, natural expression found in most European languages; in O.E., Gk., L., O.Fr. as ha ha. A ha-ha (1712), from Fr., was "an obstacle interrupting one's way sharply and disagreeably;" so called because it "surprizes ... and makes one cry Ah! Ah!" ["Le Blond's Gardening," 1712].
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
ha
  1. Hausa

  2. hectare

  3. hour angle

HA
  1. headache

  2. Hydrocephalus Association

  3. hyperalimentation

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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