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proof

noun · verb US /pruːf/

any factual evidence that helps to establish the truth of something

How often you will meet it

Rank 1,741 of 71,295 words measured. It occurs 10,440 times across 155,370 chapters — 0.005% of every word in the library.

What it means

noun

  1. any factual evidence that helps to establish the truth of something also: cogent evidence if you have any proof for what you say, now is the time to produce it
  2. a formal series of statements showing that if one thing is true something else necessarily follows from it
  3. a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
  4. (printing) an impression made to check for errors also: test copy, trial impression
  5. a trial photographic print from a negative
  6. the act of validating; finding or testing the truth of something also: validation, substantiation

verb

  1. make or take a proof of, such as a photographic negative, an etching, or typeset
  2. knead to reach proper lightness proof dough

CMU Pronouncing Dictionary · Princeton WordNet 3.1

proof in real books

Each sentence below was written by a published author and is taken from a different book in our library. Open one to read the passage it came from, with narration.

  • For Maxence considered the bills found in the secretary as a flagrant, irrefutable and material proof.

    Other People's Money · Emile Gaboriau · Chapter 1

  • I can't believe you did this thing, even unconsciously, until I'm shown proof without a single flaw.

    The Abandoned Room · Wadsworth Camp · Chapter 1

  • The presence of a cicatrix on the left temple (This is a most irrefutable proof of insanity).

    Punchinello, Volume 1, No. 08, May 21, 1870 · Various · Chapter 1

  • The smile on his face and the reposeful position of his jaw were proof enough of that.

    The Intrusion of Jimmy · P. G. (Pelham Grenville) Wodehouse · Chapter 1

  • To him, who was never gay but in her presence, her gaiety seemed plain proof of indifference.

    Ethan Frome · Edith Wharton · Chapter 1

Nearby in the frequency table

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