Definition of "expert" [ex•pert]

  • A person with a high degree of skill in or knowledge of a certain subject. (noun)
  • The highest grade that can be achieved in marksmanship. (noun)
  • A person who has achieved this grade. (noun)
  • Having, involving, or demonstrating great skill, dexterity, or knowledge as the result of experience or training. See Synonyms at proficient. (adjective)
  • A person who has extensive skill or knowledge in a particular field (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • Skilful or knowledgeable (adjective)
  • Of, involving, or done by an expert (adjective)

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Use "expert" in a sentence
  • "It just appears rather contradictory to have used the term expert there."
  • "Ezinearticles.com, which has published more than four million articles online on a wide variety of topics by what it calls "expert authors," is being pushed down Google Inc.'s search rankings in part because of "article vomit.""
  • "(Though the expert is an exception: Civil law courts tend to appoint their own experts, instead of letting parties bringthem.)"