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expert

adjectivenounverbcommon in dialogue

  • United Kingdom//ˈɛk.spɜːt//
  • United Kingdom//ɪkˈspɜːt//
  • Canada//ˈɛk.spɜɹt//
  • Canada//ɪkˈspɜɹt//
  • Australia//ˈek.spɜːt//

Extraordinary capable or knowledgeable.

adjective

  1. 1

    Extraordinary capable or knowledgeable.

    I am expert at making a simple situation complex.

    My cousin is an expert pianist.

  2. 2

    Characteristic of an expert.

    This problem requires expert knowledge.

  3. 3

    obsoleteProven, experienced, veteran.

Etymology

Inherited from Middle English expert, derived from Old French expert (“experienced”), espert, from Latin expertus (contracted from *experitus), perfect active participle of experior (“to try”), from ex- + *-perior.

noun

  1. 1

    A person with extensive knowledge or ability in a given subject.

    If an expert says it can't be done, get another expert. - David Ben-Gurion

    We called in several experts on the subject, but they couldn't reach an agreement.

    Plastics are energy-rich substances, which is why many of them burn so readily. Any organism that could unlock and use that energy would do well in the Anthropocene. Terrestrial bacteria and fungi which can manage this trick are already familiar to experts in the field.

    I'm an expert in my field Ufology, yes, it's all real Ancient aliens, it's all true I'm an expert just like you

  2. 2

    A player ranking just below master.

verb

  1. 1

    To have (something) reviewed or checked by an expert.

    Estimated cost of editorial work on Advanced History […] Estimated cost of experting the Advanced History […]

    The bill in question was one proposing to appropriate from the public moneys of this State $30,000 to pay an accountant for experting the books of the Southern Pacific Company, in furtherance of litigation then pending.

Forms

plural
experts
comparative
more expert
superlative
most expert
past tense
experted
past participle
experted
present participle
experting
third person singular
experts
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).