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expert

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Expert is defined as someone who has advanced knowledge or skill in a particular area.

(noun)

When it comes to the subject of history, a history teacher is an example of an expert.

The definition of expert is someone who is very skillful or has advanced training and knowledge in a particular area or field.

(adjective)

An example of someone who would be described as an expert is an Olympic athlete, who could be described as an expert in his or her sport.

See expert in Webster's New World College Dictionary

adjective

very skillful; having much training and knowledge in some special field
of or from an expert: an expert opinion

Origin: ME < OFr < L expertus, pp. of experiri: see peril

noun

a person who is very skillful or highly trained and informed in some special field

Origin: Fr

Related Forms:

expertly adverb
expertness noun

See expert in American Heritage Dictionary 4

noun

A person with a high degree of skill in or knowledge of a certain subject.
a. The highest grade that can be achieved in marksmanship.
b. A person who has achieved this grade.

adjective (ĕkˈspûrt, ĭk-spûrtˈ)

Having, involving, or demonstrating great skill, dexterity, or knowledge as the result of experience or training. See Synonyms at proficient.

Origin:

Origin: Middle English

Origin: , from Old French, experienced

Origin: , from Latin expertus

Origin: , past participle of experīrī, to try; see per-³ in Indo-European roots

Related Forms:

exˈpertˌly adverb

exˈpertˌness noun

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