expert

Definition

  • noun: a person who has special skill or knowledge relating to a particular subject
  • noun: one with the special skill or knowledge representing mastery of a particular subject
  • verb: to serve as an expert
  • adjective: having, involving, or displaying special skill or knowledge derived from training or 'experience'
  • adjective: having or showing special skill or knowledge because of what you have been taught or what you have experienced
  • synonyms: dexterous, adroit, prompt

Examples

  • an 'expert witness' [=a witness in a court of law who is an expert on a particular subject]

  • The company has become 'expert' at/in adapting its products for new clients.

  • She was an acknowledged 'expert' on/in child development.

Movie quotes

  • (..) What's the trouble? This man says we have trouble with our telephones. Allow me to introduce myself. I am Emile Flournoy, communications expert and chief troubleshooter for the Nice telephone company. Oh, please come in, monsieur. Now what can we do to help you? (..)
    1975 The Return of the Pink Panther