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See more synonyms for liar on Thesaurus.com
  1. a person who tells lies.
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Origin of liar

before 950; Middle English lier, Old English lēogere. See lie1, -ar1
Can be confusedliar lyre


See more synonyms for liar on Thesaurus.com
falsifier, perjurer, prevaricator.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for liar


  1. a person who has lied or lies repeatedly
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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

Word Origin and History for liar


early 13c., from Old English leogere "liar, false witness," agent noun from Anglian legan, West Saxon leogan "be untruthful, lie" (see lie (v.1)). "The form in -ar is probably in imitation of the refashioned forms such as scholar for scoler and pillar for piler." [Barnhart]

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Online Etymology Dictionary, © 2010 Douglas Harper