expert

[noun, verb ek-spurt; adjective ek-spurt, ik-spurt]
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noun
  1. a person who has special skill or knowledge in some particular field; specialist; authority: a language expert.
  2. Military.
    1. the highest rating in rifle marksmanship, above that of marksman and sharpshooter.
    2. a person who has achieved such a rating.
adjective
  1. possessing special skill or knowledge; trained by practice; skillful or skilled (often followed by in or at): an expert driver; to be expert at driving a car.
  2. pertaining to, coming from, or characteristic of an expert: expert work; expert advice.
verb (used with object)
  1. to act as an expert for.

Origin of expert

1325–75; Middle English (adj.) < Latin expertus, past participle of experīrī to try, experience
Related formsex·pert·ly, adverbex·pert·ness, nounnon·ex·pert, noun, adjectivepro·ex·pert, adjectiveun·ex·pert, adjective

Synonyms for expert

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Synonym study

3. See skillful.

Antonyms for expert

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for expert

expert

noun
  1. a person who has extensive skill or knowledge in a particular field
adjective
  1. skilful or knowledgeable
  2. of, involving, or done by an expertan expert job
Derived Formsexpertly, adverbexpertness, noun

Word Origin for expert

C14: from Latin expertus known by experience, from experīrī to test; see experience
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 expert
adj.

late 14c., from Old French expert and directly from Latin expertus, past participle of experiri "to try, test" (see experience). The noun sense of "person wise through experience" existed 15c., reappeared 1825. Related: Expertly.

Online Etymology Dictionary, © 2010 Douglas Harper