Definition of PROOF

proof

Meanings

Plural: proofs

Noun

  • any factual evidence that helps to establish the truth of something
    • "if you have any proof for what you say, now is the time to produce it"
  • a formal series of statements showing that if one thing is true something else necessarily follows from it
  • a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
  • (printing) an impression made to check for errors
  • a trial photographic print from a negative
  • the act of validating; finding or testing the truth of something
  • An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.
  • The degree of evidence which convinces the mind of any truth or fact, and produces belief; a test by facts or arguments which induce, or tend to induce, certainty of the judgment; conclusive evidence; demonstration.
  • The quality or state of having been proved or tried; firmness or hardness which resists impression, or does not yield to force; impenetrability of physical bodies.
  • Experience of something.
  • Firmness of mind; stability not to be shaken.
  • A proof sheet; a trial impression, as from type, taken for correction or examination.
  • A limited-run high-quality strike of a particular coin, originally as a test run, although nowadays mostly for collectors' sets.
  • A sequence of statements consisting of axioms, assumptions, statements already demonstrated in another proof, and statements that logically follow from previous statements in the sequence, and which concludes with a statement that is the object of the proof.
  • A process for testing the accuracy of an operation performed. Compare prove, transitive verb, 5.
  • Armour of excellent or tried quality, and deemed impenetrable; properly, armour of proof.
  • A measure of the alcohol content of liquor. Originally, in Britain, 100 proof was defined as 57.1% by volume (no longer used). In the US, 100 proof means that the alcohol content is 50% of the total volume of the liquid; thus, absolute alcohol would be 200 proof.

Verb

  • make or take a proof of, such as a photographic negative, an etching, or typeset
  • knead to reach proper lightness
    • "proof dough"
  • read for errors
    • "I should proofread my manuscripts"
  • activate by mixing with water and sometimes sugar or milk
    • "proof yeast"
  • make resistant (to harm)
    • "proof the materials against shrinking in the dryer"
  • To proofread.
  • To make resistant, especially to water.
  • To test-fire with a load considerably more powerful than the firearm in question's rated maximum chamber pressure, in order to establish the firearm's ability to withstand pressures well in excess of those expected in service without bursting.
  • To allow (yeast-containing dough) to rise, especially after it has been shaped
  • To test the activeness of (yeast).

Adjective Satellite

  • (used in combination or as a suffix) able to withstand
    • "temptation-proof"
    • "childproof locks"

Adj

  • Used in proving or testing.
  • Firm or successful in resisting.
  • Being of a certain standard as to alcohol content.

Origin / Etymology

From Middle English proof, from Old French prove, from Late Latin proba (“a proof”), from Latin probō (“to prove”); see prove; compare also the doublet probe.

Synonyms

bloom, cogent evidence, proofread, rehydrate, substantiation, test copy, testament, trial impression, validation

Antonyms

disproof

Scrabble Score: 10

proof is a valid Scrabble (US) TWL word
proof is a valid Scrabble Word in Merriam-Webster MW Dictionary
proof is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 11

proof is a valid Words With Friends word