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WordReference Random House Learner's Dictionary of American English © 2024proof /pruf/USA pronunciation
n.
- [uncountable] evidence or facts that are sufficient to establish a thing as true or believable.
- Mathematics, Philosophy[countable]a sequence of steps, statements, or demonstrations that leads to and establishes a valid conclusion.
- Wine[uncountable] the strength of an alcoholic liquor, esp. with reference to the standard whereby 100 proof signifies an alcoholic content of 50 percent.
- Photography[countable]a print made from a negative of a photograph for checking quality.
- Printing[countable]a preliminary copy, as of a manuscript, that is printed for correction or changes.
adj. [be + ~]
- able to withstand or resist something harmful or undesirable:a shelter that was proof against the cold.
v. [~ + object]
- to proofread:Proof the document.See -prov-.
-proof, suffix.
- -proof is used to form adjectives with the meaning "resistant;
not allowing through'' the word mentioned:child + -proof → childproof (= resistant to a child opening it);water + proof → waterproof (= not allowing water through).
WordReference Random House Unabridged Dictionary of American English © 2024proof
(pro̅o̅f ),USA pronunciation n.
- evidence sufficient to establish a thing as true, or to produce belief in its truth.
- anything serving as such evidence:What proof do you have?
- the act of testing or making trial of anything;
test;
trial:to put a thing to the proof.
- the establishment of the truth of anything;
demonstration.
- Law(in judicial proceedings) evidence having probative weight.
- the effect of evidence in convincing the mind.
- Mathematicsan arithmetical operation serving to check the correctness of a calculation.
- Mathematics, Philosophya sequence of steps, statements, or demonstrations that leads to a valid conclusion.
- a test to determine the quality, durability, etc., of materials used in manufacture.
- Wine[Distilling.]
- the arbitrary standard strength, as of an alcoholic liquor.
- strength with reference to this standard: "100 proof '' signifies a proof spirit, usually 50% alcohol.
- Photographya trial print from a negative.
- [Print.]
- Printinga trial impression, as of composed type, taken to correct errors and make alterations.
- Printingone of a number of early and superior impressions taken before the printing of the ordinary issue:to pull a proof.
- Printing(in printmaking) an impression taken from a plate or the like to show the quality or condition of work during the process of execution;
a print pulled for examination while working on a plate, block, stone, etc.
- Currency[Numis.]one of a limited number of coins of a new issue struck from polished dies on a blank having a polished or matte surface.
- the state of having been tested and approved.
- proved strength, as of armor.
- Scottish Termsthe trial of a case by a judge alone, without a jury.
adj.
- able to withstand;
successful in not being overcome:proof against temptation.
- impenetrable, impervious, or invulnerable:proof against outside temperature changes.
- used for testing or proving;
serving as proof.
- of standard strength, as an alcoholic liquor.
- of tested or proven strength or quality:proof armor.
- noting pieces of pure gold and silver that the U.S. assay and mint offices use as standards.
v.t.
- to test;
examine for flaws, errors, etc.;
check against a standard or standards.
- Printingprove (def. 7).
- to proofread.
- to treat or coat for the purpose of rendering resistant to deterioration, damage, etc. (often used in combination):to proof a house against termites; to shrink-proof a shirt.
- Food[Cookery.]
- to test the effectiveness of (yeast), as by combining with warm water so that a bubbling action occurs.
- to cause (esp. bread dough) to rise due to the addition of baker's yeast or other leavening.
- Late Latin proba a test, akin to Latin probāre to test and find good; compare pree
- Middle French preve, proeve, prueve
- Middle English prove, prooff, prof, proufe, alteration (by association with the vowel of prove) of preove, proeve, prieve, pref 1175–1225
- 1.See corresponding entry in Unabridged confirmation, demonstration, corroboration, support. See evidence.
- 3.See corresponding entry in Unabridged examination, assay.
- 18.See corresponding entry in Unabridged firm, steadfast.
-proof,
- a combining form meaning "resistant, impervious to'' that specified by the initial element:burglarproof;childproof;waterproof.
Collins Concise English Dictionary © HarperCollins Publishers::
proof /pruːf/ n - any evidence that establishes or helps to establish the truth, validity, quality, etc, of something
- the whole body of evidence upon which the verdict of a court is based
- a sequence of steps or statements that establishes the truth of a proposition
- the act of testing the truth of something (esp in the phrase put to the proof)
- trial before a judge without a jury
- a trial impression made from composed type, or a print-out (from a laser printer, etc) for the correction of errors
- (in engraving, etc) a print made by an artist or under his supervision for his own satisfaction before he hands the plate over to a professional printer
- a trial print from a negative
- the alcoholic strength of proof spirit
- the strength of a beverage or other alcoholic liquor as measured on a scale in which the strength of proof spirit is 100 degrees
adj - (usually postpositive) followed by against: able to resist; impervious (to): the roof is proof against rain
- having the alcoholic strength of proof spirit
- of proved strength or impenetrability: proof armour
vb - (transitive) to take a proof from (type matter, a plate, etc)
- to proofread (text) or inspect (a print, etc), as for approval
- to render (something) proof, esp to waterproof
Etymology: 13th Century: from Old French preuve a test, from Late Latin proba, from Latin probāre to test Collins Concise English Dictionary © HarperCollins Publishers::
-proof adj , combining form - secure against (damage by); (make) impervious to: waterproof, mothproof, childproof
Etymology: from proof (adj)
'proof' also found in these entries (note: many are not synonyms or translations):
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