Proof Definition

Define what is Proof?

1. cogent evidence, proof (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.
Synonyms: cogent evidence

evidence, grounds noun
your basis for belief or disbelief; knowledge on which to base belief.


confirmation, substantiation, verification, check noun
additional proof that something that was believed (some fact or hypothesis or theory) is correct.

validation, establishment noun
the cognitive process of establishing a valid proof.

2. proof (verb)

make or take a proof of, such as a photographic negative, an etching, or typeset.


    produce, create, make verb
    create or manufacture a man-made product.

    3. proof (adjective satellite)

    (used in combination or as a suffix) able to withstand.

    • temptation-proof.
    • childproof locks.
    Antonyms: pervious [Indirect via impervious] (adjective)

    admitting of passage or entrance.

    • pervious soil.
    • a metal pervious to heat.

    4. proof (verb)

    knead to reach proper lightness.

    • proof dough.

    knead, work verb
    make uniform.

    5. proof (noun)

    a formal series of statements showing that if one thing is true something else necessarily follows from it.


      argument, statement noun
      a fact or assertion offered as evidence that something is true.


      mathematical proof noun
      proof of a mathematical theorem.

      logical proof noun
      proof of a logical theorem.

      monstrance, demonstration noun
      proof by a process of argument or a series of proposition proving an asserted conclusion.

      6. proofread, proof (verb)

      read for errors.

      • I should proofread my manuscripts.
      Synonyms: proofread

      insure, see to it, ascertain, ensure, check, assure, control, see verb
      be careful or certain to do something; make certain of something.

      7. proof (noun)

      a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume).


        quantity, measure, amount noun
        how much there is or how many there are of something that you can quantify.

        8. test copy, trial impression, proof (noun)

        (printing) an impression made to check for errors.


          printing, impression noun
          all the copies of a work printed at one time.


          galley proof noun
          a proof taken before the type is broken up to print pages.

          foundry proof noun
          a proof taken from a form before duplicate plates are made.

          9. proof (verb)

          activate by mixing with water and sometimes sugar or milk.

          • proof yeast.

          alter, change, modify verb
          cause to change; make different; cause a transformation.

          10. proof (noun)

          a trial photographic print from a negative.


            photographic print, print noun
            a printed picture produced from a photographic negative.

            11. proof (verb)

            make resistant (to harm).

            • proof the materials against shrinking in the dryer.

            strengthen verb
            gain strength.


            bombproof verb
            make safe against bombings.

            bulletproof verb
            make bulletproof.

            child-proof, childproof verb
            make safe against children.

            foolproof, goof-proof, goofproof verb
            proof against human misuse or error.

            fireproof verb
            make resistant to fire.

            weatherproof verb
            make resistant to bad weather.

            12. validation, substantiation, proof (noun)

            the act of validating; finding or testing the truth of something.


              determination, finding noun
              the act of determining the properties of something, usually by research or calculation.


              authentication, certification noun
              validating the authenticity of something or someone.

              documentation, support noun
              documentary validation.

              monetisation, monetization noun
              establishing something (e.g. gold or silver) as the legal tender of a country.

              probate noun
              the act of proving that an instrument purporting to be a will was signed and executed in accord with legal requirements.

              Nearby Terms

              proof spirit (noun)
              a mixture containing half alcohol by volume at 60 degrees Fahrenheit

              proofed (adjective satellite)
              treated so as to become resistant

              proofread (verb)
              read for errors

              proofreader (noun)
              someone who reads proof in order to find errors and mark corrections

              prop (noun)
              a support placed beneath or against something to keep it from shaking or falling

              prop root (noun)
              a root that grows from and supports the stem above the ground in plants such as mangroves

              prop up (verb)
              support by placing against something solid or rigid

              propaedeutic (noun)
              a course that provides an introduction to an art or science (or to more advanced study generally)

              propaedeutics (noun)
              a course that provides an introduction to an art or science (or to more advanced study generally)

              propaganda (noun)
              information that is spread for the purpose of promoting some cause

              propagandise (verb)
              subject to propaganda

              propagandist (noun)
              a person who disseminates messages calculated to assist some cause or some government

              propagandistic (adjective)
              of or relating to or characterized by propaganda

              propagandize (verb)
              subject to propaganda

              propagate (verb)
              transmit from one generation to the next