dah

[dah]
noun
an echoic word, the referent of which is a tone interval approximately three times the length of the dot, used to designate the dash of Morse code, International Morse code, etc.
Compare dit.


Origin:
1935–40

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
dah (dɑː)
 
n
Compare dash the long sound used in combination with the short sound dit, in the spoken representation of Morse and other telegraphic codes

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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American Heritage
Abbreviations & Acronyms
DAH
  1. Dictionary of American History

  2. disordered action of heart

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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Example sentences for dah
Likewise, continuous dahs are created by holding the dah contact.
Do dah day is an annual pet parade held around the end of may.
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