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hi-fi

[hahy-fahy] /ˈhaɪˈfaɪ/
noun
2.
a phonograph, radio, or other sound-reproducing apparatus possessing high fidelity.
adjective
3.
of, relating to, or characteristic of such apparatus; high-fidelity.
Origin
1945-1950
1945-50, Americanism; shortened form of high fidelity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hi-fi

hi-fi

/ˈhaɪˈfaɪ/
noun (informal)
1.
  1. short for high fidelity
  2. (as modifier): hi-fi equipment
2.
a set of high-quality sound-reproducing equipment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hi-fi
adj.

1947, abbreviation of high fidelity (1934), of radio recievers, in reference to their quality of sound reproduction. Hi as an advertiser's phonetic shortening of high is attested by 1914.

Online Etymology Dictionary, © 2010 Douglas Harper
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Related Abbreviations for hi-fi

hi-fi

high fidelity
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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