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The following statistics are based on the British National Corpus, so they are representative for the British English.

Distribution of usage frequency for the most common synonyms of the noun proof:

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Definition of the noun proof

What does proof mean as a name of something?

noun - plural: proofs

  1. any factual evidence that helps to establish the truth of something
  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)
    • lexical domain: Quantities - nouns denoting quantities and units of measure
    • more generic words: amount / measure / quantity = how much there is or how many there are of something that you can quantify
  4. (printing) an impression made to check for errors
  5. a trial photographic print from a negative
    • lexical domain: Artifacts - nouns denoting man-made objects
    • more generic terms: photographic print / print = a printed picture produced from a photographic negative
  6. the act of validating; finding or testing the truth of something

Alternative definition of the noun proof


  1. [countable] An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.
  2. [uncountable] 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.
  3. The quality or state of having been proved or tried; firmness or hardness which resists impression, or doesn't yield to force; impenetrability of physical bodies.
  4. [uncountable, obsolete] Firmness of mind; stability not to be shaken.
  5. [countable, printing] A proof sheet; a trial impression, as from type, taken for correction or examination.
  6. [countable, logic, mathematics] 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.
  7. [countable, mathematics] A process for testing the accuracy of an operation performed. Compare prove, transitive verb, 5.
  8. [obsolete] Armour of excellent or tried quality, and deemed impenetrable; properly, armour of proof.
  9. [US] A measure of the alcohol content of liquor. Originally, in Britain, 100 'proof' was defined as 57.1% by volume (not used anymore). In the US, 100 'proof' means that the alcohol content is 50% of the total volume of the liquid, and thus, absolute alcohol would be 200 'proof'.

Definition of the adjective proof

What does proof mean as an attribute of a noun?

adjective - degrees: proofer |

  1. (used in combination or as a suffix) able to withstand
    • example: temptation-proof
    • adjective position: predicative adjective (it occurs after a verb that follows the noun)
    • similar: imperviable / impervious

Alternative definition of the adjective proof


  1. Used in proving or testing.
  2. Firm or successful in resisting.
  3. [context: of alcoholic liquors] Being of a certain standard as to alcohol content.

Definition of the verb proof

What does proof mean as a doing word?

verb - inflections: proofed | proofing | proofs

  1. make or take a proof of, such as a photographic negative, an etching, or typeset
    • lexical domain: Creation - verbs of sewing, baking, painting, performing
    • more generic words: create / make / produce = create or manufacture a man-made product
  2. knead to reach proper lightness
    • example: proof dough
    • lexical domain: Contact - verbs of touching, hitting, tying, digging
    • more generic words: knead / work = make uniform
  3. read for errors
  4. activate by mixing with water and sometimes sugar or milk
    • example: proof yeast
    • lexical domain: Change - verbs of size, temperature change, intensifying, etc.
    • more generic words: alter / change / modify = cause to change; make different
  5. make resistant (to harm)

Alternative definition of the verb proof


  1. [transitive, intransitive, colloquial] To proofread.
  2. [transitive] To make resistant, especially to water.
  3. [transitive] To knead, as in bread dough.


  1. "Proof" is a 2005 American drama film directed by John Madden and starring Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal, and Hope Davis. It was written by Rebecca Miller, based on David Auburn's Pulitzer Prize-winning play of the same title.
  2. "Proof" is a 1991 Australian film by Jocelyn Moorhouse starring Hugo Weaving, Geneviève Picot and Russell Crowe. It was chosen as "Best Film" at the 1991 Australian Film Institute Awards, along with 5 other awards, including Moorhouse for "Best Director", Weaving for "Best Leading Actor", and Crowe for "Best Supporting Actor".
  3. Proof is an Irish television mini-serial co-produced by Subotica for Raidió Teilifís Éireann in Ireland and TV2 in Denmark. Proof had two seasons: the second season entitled Proof 2.
  4. Proof is a tv program.


"Proof" is a 2000 play by the American playwright David Auburn. Premiered Off-Broadway in May 2000, it transferred to Broadway theater in October 2000. The production closed in January 2003 after a total of 917 performances.

  • also known as "Proof: A Play"
  • award: - Pulitzer Prize for Drama, received by David Auburn


Proof is an American comic book series, published by Image Comics and created by writer Alex Grecian and artist Riley Rossmo. The story concerns John "Proof" Prufrock, a sasquatch, who works for a secret government organization. He hunts cryptids with his partner, Ginger Brown, and seeks clues to his past. The book was influenced by The X-Files and Tarzan.


  1. "Proof" – a song by English band I Am Kloot.
  2. "Proof" is a musical album of Stephen Warbeck, soundtrack.
    • also known as Proof Soundtrack
    • released on (10 years ago)
  3. "Proof" is a musical album of Not Drowning, Waving, soundtrack.
    • also known as Proof Soundtrack
    • released in (25 years ago)
  4. "Proof" is a musical EP of Colour Coding.
    • released on
  5. "Proof" is a cataloged instance, composition.
  6. "Proof" is a cataloged instance, composition.
  7. "Proof" is a musical single of I Am Kloot.
    • released on (5 years ago)
  8. "Proof" is a musical album of Greenwich Meantime.
    • released in (9 years ago)
  9. "Proof" is a musical album of Laura Tsaggaris.
    • released on (10 years ago)
  10. "Proof" is a musical EP of Historians.
    • released on (6 years ago)
  11. "Proof" is a musical album of Emily Elbert.
    • released on (5 years ago)
  12. "Proof" is a musical album of Robert Skoro.


  1. Proof: DeShaun Dupree Holton, better known by his stage name Proof, was an American rapper and actor from Detroit, Michigan. During his career, he was a member of the groups Goon Sqwad, 5 Elementz, Promatic, and most notably, D12. He was a close childhood friend of rapper Eminem, who lived on the same block. In 2006, Proof was shot and killed during an altercation at the CCC nightclub in Detroit.
  2. Proof a.k.a. DEAFPROOFBEATS is an American music composer of beats and instrumentals - mainly in the Rap, Hip-Hop, RB and Pop genres.

There are other people with in their name, like Sam Proof and Stone Proof.


  1. Proof: A proof is sufficient evidence or an argument for the truth of a proposition.
  2. Proof is a 2000-2003 theater production of a play by David Auburn.
  3. Proof is a 2003 theater production of the play by David Auburn.
    • award:
      • Helen Hayes Awards for Outstanding Lead Actress, Resident Play nomination for Keira Naughton
      • Helen Hayes Awards for Outstanding Resident Play nomination for Arena Stage
  4. Proof is a 2002 theater production of the play by David Auburn.
    • award: - Laurence Olivier Award for Best Actress nomination for Gwyneth Paltrow
  5. Proof is a TV program, begun in (7 years ago).

Phrases with Proof

Phrases starting with the word Proof:

  1. proof spirit
  2. Proof System

Phrases ending with the word Proof:

  1. -Proof
  2. 110 Proof
  3. Air-Proof
  4. goof-proof
  5. page proof
  6. Sale-Proof
  7. child-proof
  8. Idiot-Proof
  9. Bullet-Proof
  10. Future proof
  11. galley proof
  12. ladder-proof
  13. Rabbit-Proof
  14. Splash-Proof
  15. Devil's Proof
  16. foundry proof
  17. logical proof
  18. Artist's proof

View more phrases with the word Proof in thesaurus!

Printed dictionaries and other books with definitions for Proof

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Google previewCrown Cases Reserved for Consideration, and Decided by the Judges of England (1861)

With a Selection of Cases and Notes of Cases Relating to Indictable Offences, Argued and Determined in the Court of Queen's Bench and the Courts of Error : from Michaelmas Term, 1858, to Michaelmas Term, 1860 by Thomas Bell, Sir Edward Chandos Leigh, Sir Lewis William Cave

If there be any difference Berry's between them, it is in favour of the prisoner; for Cuse -whether the word proof means evidence or effect of evidence, or means to an end, or the end itself, it is the most comprehensive term used. The words ...

Google previewGuide to Promotion: Or, Lectures on Fortification, Military Law, Tactics, Military Topography, and Military Bridges (1883)

by Stephen Flower

The word proof means the effect of evidence. The rules of evidence to be followed by courts- martial are to be those adopted in English courts of law. Witnesses. — As a general rule, every person is competent to give evidence as a witness, the ...

Google previewThe American and English Encyclopaedia of Law (1903)

by David Shephard Garland, Lucius Polk McGehee, James Cockcroft, Charles Porterfield

The word proof means legal evidence or such species !of evidence as would be received in the ordinary course of judicial proceedings. Vosburgh v. Welch, 11 Johns. (N. Y.) 175; Brown v. Hinchman, 9 Johns. (N. Y.} 75; Betts v. Betts, 1 Johns .

Google previewMultilingual Law Dictionary (1979)

by Lawrence Deems Egbert, Fernando Morales Macedo

proof preuve (f) prueba (f ) ; probanza (f ) ...

Google previewThe London encyclopaedia, or, Universal dictionary of science, art, literature, and practical mechanics, by the orig. ed. of the Encyclopaedia metropolitana [T. Curtis]. (1839)

by Thomas Curtis (of Grove house sch, Islington)

Take of cardamom seeds, carraway seeds, cochineal, of each powdered two drachms, cinnamon bark bruised half an ounce, raisins stoned lour ounces, proof spirit two pints. Macerate during fourteen days, and filter. Medical properties.

Online dictionaries and encyclopedias with entries for Proof

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Photos about Proof

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View more pictures about The Proof and Sound Proof.

If you need related images for an article or a report, you can download stock photos:
Small photo of Storm proof matchesSmall photo of Storm proof matchesSmall photo of Line of bitumen damp proof course in a brick wallSmall photo of Pouring olive oil on grease proof paperSmall photo of water proof step of workSmall photo of Water proof membrane protect moisture under epoxy floor concrete slabSmall photo of Water proof membrane protect moisture under epoxy floor concrete slab More...

Video language resources about Proof

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View more videos about Galley proof, Body of proof, Judgement Proof, Proof by exhaustion, and Proof by Contradiction.

See also the pronunciation examples of Proof!

Sign language

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Quotes about Proof

I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible. (Carl Friedrich Gauss)
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Scrabble value of P3R1O1O1F4

The value of this 5-letter word is 10 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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