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prove

PROOV/pɹuːv/UKPROHV/pɹəʊv/

Formsproves, proving, proved

10 meanings of prove

Practice

  1. 1
    back up a claimverbtransitive
    To demonstrate that something is true or valid by providing evidence or argument.

    The lawyer set out to prove that her client was innocent.

    DNA evidence proved his involvement beyond any reasonable doubt.

    UsageOften prove that + clause. For the past participle, has proved and has proven are both common.

    Similardemonstrate, establish, show, substantiate

    Oppositedisprove, refute, rebut

  2. 2
    turn outverbintransitive
    To turn out to be a particular thing or to have a particular quality, once it is tried, known, or seen over time.

    The medicine proved effective in most of the patients.

    Their early fears would prove unfounded.

    UsageTakes an adjective or noun straight after it, or to be: proved useful, proved to be a mistake.

    Note

    A linking verb that takes an adjective or noun directly: calculations prove incorrect, or Marlowe's "shall I prove a traitor to my King?" A favorite narrative construction is was to prove, which looks forward from the past: "it was to prove the turning point in the war."

  3. 3
    show abilityverbtransitive
    To demonstrate one's ability, skill, or courage to other people, often with a reflexive object such as oneself or yourself.

    Rookies often feel they must prove themselves before the veterans accept them.

    After a losing season, the young coach had something to prove.

    UsageUsually with myself, herself and so on: prove yourself. Set phrases: have something to prove, have nothing left to prove.

  4. 4
    verbtransitive
    To establish the genuineness or validity of something; to verify it.

    The executor had to prove the will in court before the estate could be divided.

    You must prove your identity before accessing the account.

    Similarverify, confirm, establish, authenticate, validate

Practice

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Origin

From Middle English "proven", from Old English "prōfian" (to try, prove) and Old French "prover", both from Latin "probō" (to test, examine, prove), from "probus" (good, worthy, excellent). It is a doublet of "probe".

Checked 5 Nov 2026 · 5 facts