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1. Dictionary

   proof

   /pruːf/

   noun

   • 1. evidence or argument establishing a fact or the truth of a statement: "you will be asked to give proof of your identity" Similar evidenceverificationcorroborationauthenticationconfirmationcertificationvalidationattestationdemonstrationsubstantiationwitnesstestamentdocumentationfactsdatatestimonyammunition
   • ▪ the spoken or written evidence in a trial.
   • ▪ the action of establishing the truth of a statement: "spatial dimensions whose very existence is beyond all hope of proof"
   • ▪ a series of stages in the resolution of a mathematical or philosophical problem.
   • 2. a trial impression of a page, taken from type or film and used for making corrections before final printing. Similar page proofgalley proofgalleypullsliptrial printrevise
   • ▪ a trial photographic print made for initial selection.
   • ▪ each of a number of impressions from an engraved plate, especially (in commercial printing) of a limited number before the ordinary issue is printed and before an inscription or signature is added.
   • ▪ a specially struck specimen coin with a polished or frosted finish.
   • 3. the strength of distilled alcoholic spirits, relative to proof spirit taken as a standard of 100: "powerful 132-proof rum"
   • 4. a test or trial of something.
   • 5. a trial or a civil case before a judge without a jury.

   adjective

   • 1. able to withstand something damaging; resistant: "the marine battle armour was proof against most weapons"
   • 2. denoting a trial impression of a page or printed work: "a proof copy is sent up for checking"

   verb

   • 1. make (fabric) waterproof: "if you are using a piece of lightweight canvas it will be necessary to proof the fabric when complete"
   • 2. make a proof of (a printed work, engraving, etc.): "proof each plate and print it on acetate first"
   • ▪ proofread (a text): "William proofed much of her work"
   • 3. activate (yeast) by the addition of liquid: North American "proof the yeast with the teaspoon of sugar"
   • ▪ knead (dough) until light and smooth.
   • ▪ (of dough) prove: "shape into a baguette and let proof for a few minutes"

   Word Origin Middle Englishpreve, from Old French proeve, from late Latin proba, from Latin probare ‘to test, prove’. The change of vowel in late Middle English was due to the influence of prove. Current senses of the verb date from the late 19th century.

   Derivatives

   • 1. proofless adjective

   Scrabble Points: 10

   • P

     3

   • R

     1

   • O

     1

   • O

     1

   • F

     4

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   More definitions, origin and scrabble points

2. www.merriam-webster.com › dictionary › proofProof Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › proof

   • Cached

   The meaning of PROOF is the cogency of evidence that compels acceptance by the mind of a truth or a fact. How to use proof in a sentence.

3. dictionary.cambridge.org › dictionary › englishPROOF | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   PROOF definition: 1. a fact or piece of information that shows that something exists or is true: 2. a printed copy…. Learn more.

4. www.thefreedictionary.com › proofProof - definition of proof by The Free Dictionary

   www.thefreedictionary.com › proof

   • Cached

   1. The evidence or argument that compels the mind to accept an assertion as true. 2. a. The validation of a proposition by application of specified rules, as of induction or deduction, to assumptions, axioms, and sequentially derived conclusions. b. A statement or argument used in such a validation. 3. a.

5. www.collinsdictionary.com › dictionary › englishPROOF definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   Proof is a fact, argument, or piece of evidence which shows that something is definitely true or definitely exists. This is not necessarily proof that he is wrong. I would need to bring in something with my French address on it as proof of residence.

6. www.oxfordlearnersdictionaries.com › definitionproof noun - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com › definition

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   Definition of proof noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

7. www.vocabulary.com › dictionary › proofProof - Definition, Meaning & Synonyms - Vocabulary.com

   www.vocabulary.com › dictionary › proof

   Proof is the evidence that shows something is true or valid. When you show the logical steps that take you from your hypothesis that the world is round to the conclusion that it is, you're formulating a proof.

8. www.britannica.com › dictionary › proofProof Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › proof

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   PROOF meaning: 1 : something which shows that something else is true or correct often + of; 2 : an act or process of showing that something is true

9. www.oed.com › dictionary › proof_adjproof, adj. & adv. meanings, etymology and more | Oxford ...

   www.oed.com › dictionary › proof_adj

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   There are four meanings listed in OED's entry for the word proof, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.