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See more synonyms for onomastics on Thesaurus.com
noun (used with a singular verb)
  1. the study of the origin, history, and use of proper names.
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Origin of onomastics

First recorded in 1930–35; see origin at onomastic, -ics
Related formson·o·mas·ti·cian [on-uh-muh-stish-uh n] /ˌɒn ə məˈstɪʃ ən/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for onomastics

vocabulary, phrasing, jargon, lingo, language, diction, locution, nomenclature, words, phraseology, onomastics, wordage

British Dictionary definitions for onomastics


  1. (functioning as singular) the study of proper names, esp of their origins
  2. (functioning as singular or plural) a systematization of the facts about how proper names are formed in a given language
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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 onomastics


"scientific study of names and naming," 1936, from onomastic; also see -ics.

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Online Etymology Dictionary, © 2010 Douglas Harper