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English Lexicon

Proficiency

/prəˈfɪʃ.ən.si/
nounCEFR B2 (Upper)Top #3450 frequency
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Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    A high degree of competence or skill; expertise.

    "She demonstrated a high level of proficiency in spoken Spanish."
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Linguistic Origin & Historical Etymology

Derived from the Latin 'proficere' meaning 'to advance, make progress, or accomplish', combining 'pro-' (forward) and 'facere' (to make/do). Entering Middle English through Old French, it evolved to denote an advanced degree of competence or skill in a specific domain.

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