from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The state or quality of being proficient; competence.

from The Century Dictionary.

  • noun Advancement; progress.
  • noun The state of being proficient; the degree of advancement attained in any branch of knowledge; advance in the acquisition of any art, science, or knowledge; improvement: as, to attain great proficiency in Greek or in music.
  • noun Synonyms Advance, etc. (see progress), skill.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Ability, skill, competence.
  • noun Knowledge.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun skillfulness in the command of fundamentals deriving from practice and familiarity
  • noun the quality of having great facility and competence


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin proficientem, from proficere.


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