expert.
Extraordinary capable or knowledgeable.
Meaning & usage
Extraordinary capable or knowledgeable.
I am expert at making a simple situation complex.
My cousin is an expert pianist.
Characteristic of an expert.
This problem requires expert knowledge.
Proven, experienced, veteran.
Where this word comes from
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.
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.
A player ranking just below master.
Where this word comes from
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.
To have (something) reviewed or checked by an expert.
Where this word comes from
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.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.