expert

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a person with special knowledge or ability who performs skillfully
  2. adjective having or showing knowledge and skill and aptitude
  3. adjective of or relating to or requiring special knowledge to be understood

Etymology

Inherited from Middle English [Term?], derived from Old French [Term?] (“experienced”), derived from Latin expertus, perfect active participle of experior (“to try”).

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