Dictionary Definition
proof adj : (used in combination or as a suffix)
able to withstand; "temptationproof"; "childproof locks" [syn:
proof(p)]
Noun
1 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" [syn: cogent
evidence]
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)
4 (printing) an impression made to check for
errors [syn: test copy,
trial
impression]
5 a trial photographic print from a
negative
6 the act of validating; finding or testing the
truth of something [syn: validation, substantiation]
Verb
1 make or take a proof of, such as a photographic
negative, an etching, or typeset
2 knead to reach proper lightness; "proof
dough"
3 read for errors; "I should proofread my
manuscripts" [syn: proofread]
4 activate by mixing with water and sometimes
sugar or milk; "proof yeast"
5 make resistant to water, sound, errors, etc.;
"proof the materials against shrinking in the dryer"
User Contributed Dictionary
Pronunciation
 /pru:f/
 Rhymes: uːf
Noun
 Any effort, process, or operation designed to establish or
discover a fact or truth; an act of testing; a test; a trial.
 Edmund
Spenser,
 For whatsoever mother wit or art Could work, he put in proof.
 Ford,
 You shall have many proofs to show your skill.
 Ure,
 Formerly, a very rude mode of ascertaining the strength of spirits was practiced, called the proof.
 Edmund
Spenser,
 That degree of evidence which convinces the mind of any truth
or fact, and produces belief; a test by facts or arguments that
induce, or tend to induce, certainty of the judgment; conclusive
evidence; demonstration.

William Shakespeare,
 I'll have some proof.

Ralph Waldo Emerson,
 It is no proof of a man's understanding to be able to confirm whatever he pleases.
 1990 October 28, Paul Simon,
“Proof”,
The Rhythm of the Saints, Warner Bros.
 Faith, faith is an island in the setting sun / But proof, proof is the bottom line for everyone

William Shakespeare,
 The quality or state of having been proved or tried; firmness or hardness that resists impression, or does not yield to force; impenetrability of physical bodies.
 Firmness of mind; stability not to be shaken.
 A proof sheet; a trial impression, as from type, taken for correction or examination.
 : A process for testing the accuracy of an operation performed. Compare Prove, transitive verb, 5.
 : Armor of excellent or tried quality, and deemed impenetrable; properly, armor of proof.
 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.
Translations
any effort, process, or operation designed to
establish or discover a fact or truth
the degree of evidence which convinces the mind
of any truth or fact, and produces belief
quality or state of having been proved or
tried
firmness of mind
a proof sheet
 Finnish: koevedos
process for testing the accuracy of an operation
performed
armor of excellent or tried quality
Derived terms
 artist's proof a very early proof impression of an engraving, or the like;  often distinguished by the artist's signature.
 proof reader one who reads, and marks correction in, proofs. See def. 5, above.
Adjective
 Used in proving or testing; as, a proof load, or proofcharge.
 Firm or successful in resisting; as, proof against harm; waterproof; bombproof.
 Being of a certain standard as to strength;  said of alcoholic liquors.
Derived terms
 proof charge (Firearms), a charge of powder and ball, greater than the service charge, fired in an arm, as a gun or cannon, to test its strength.
 proof impression See under impression.
 proof load (Engineering), the greatest load than can be applied to a piece, as a beam, column, etc., without straining the piece beyond the elastic limit.
 proof sheet See Proof, n., 5.
 proof ''(spirits) , a strong distilled
liquor, or mixture of
alcohol and water, containing not less than a standard amount of
alcohol.
 In the United States proof spirit is defined by law to be that mixture of alcohol and water which contains one half of its volume of alcohol, the alcohol when at a temperature of 60 deg. Fahrenheit being of specific gravity 0.7939 referred to water at its maximum density as unity. Proof spirit has at 15.556 deg. Celsius, a specific gravity of 0.93353, 100 parts by volume of the same consisting of 50 parts of absolute alcohol and 53.71 parts of water, the apparent excess of water being due to contraction of the liquids on mixture.
 In England proof spirit is defined by Act 58, George III., to be such as shall at a temperature of 10,556 deg. Celsius, weigh exactly the 12/13 part of an equal measure of distilled water. This contains 49.3 per cent by weight, or 57.09 by volume, of alcohol. Stronger spirits, as those of about 60, 70, and 80 per cent of alcohol, are sometimes called second, third, and fourth proof spirits respectively.
 proof staff a straightedge used by millers to test the flatness of a stone.
 proof stick (Sugar Manufacturing), a rod in the side of a vacuum pan, for testing the consistency of the syrup.
 proof text a passage of Scripture used to prove a doctrine.
Translations
firm or successful in resisting
being of a certain standard as to strength
See also
Verb
 To proofread.
Extensive Definition
Proof may refer to:
 A rigorous, compelling argument, including:
 Formal proof
 Mathematical proof
 Proof theory, a branch of mathematical logic that represents proofs as formal mathematical objects
 Logical argument
 Evidence (law), tested evidence or a legal proof
 Various kinds of testing or checking
 Proofing (baking technique), the process by which a yeastleavened dough rises, also called "proving"
 Proofreading
 Artist's proof, a single print taken during the printmaking process
 Proof coinage, a coin made as an example of a particular strike
 Proof test, for a firearm
 Homeopathic proving, testing a substance's effect on the body
 Galley proof, a preliminary version of a publication
 Proof (alcohol), measure of an alcoholic drink's strength
In entertainment:
 Proof (1991 film), an Australian film by Jocelyn Moorhouse
 Proof (play), a play by David Auburn
 Proof (2005 film), a film directed by John Madden, based on the play
 "Proof", a Bside by the band Coldplay, off their single Speed of Sound
 "Proof", a song by Paul Simon from his 1990 album The Rhythm of the Saints
 "Proof", a song by Happy Rhodes from her 1998 album Many Worlds Are Born Tonight
 "Proof", a 2004 song by Jpop group angela
 "Proof", a 2007 song by japanese artist Mell
 Proof (rapper), deceased member of D12
 Proof (comics), a comic series from Image Comics
proof in Bengali: প্রমাণ
proof in Czech: Důkaz
proof in Danish: Bevis
proof in German: Proof
proof in Estonian: Proof
proof in Spanish: Prueba
proof in Esperanto: Pruvo
proof in Italian: Prova
proof in Hungarian: Bizonyítás
proof in Dutch: Proof
proof in Norwegian: Bevis
proof in Portuguese: Prova (desambiguação)
proof in Romanian: Dovadă
proof in Russian: Доказательство
proof in Simple English: Proof
proof in Slovak: Dôkaz
proof in SerboCroatian: Dokaz
proof in Finnish: Todistus
proof in Thai: พรูฟ
Synonyms, Antonyms and Related Words
Christophany, Ditto copy,
Photostat, Satanophany, Xerox, Xerox copy, absolute
indication, account,
acid test, acquaintance, affirmation, airtight, ammunition, angelophany, announcement, appearance, argument, assay, attestation, authentication, avatar, backing, backing up, ballproof, basis for belief,
bearing out, blank determination, blue, blue book, blueprint, body of evidence,
bolstering, bombproof, briefing, bring out, brouillon, bulletin, bulletproof, burden of
proof, burglarproof, buttressing, certification, chain of
evidence, circumstantiation,
clue, coldtype proof,
color proof, communication, communique, computer proof,
conclusive evidence, confirmation, contact
print, corroboration,
corroboratory evidence, corrosionproof, criterion, crucial test,
crucible, damning
evidence, dampproof,
data, datum, deduction, deductive
reasoning, demonstration, determination, directory, disclosure, discourse, discourse of
reason, discursive reason, dispatch, dissemination, docimasy, document, documentation, embodiment, engrave, enlargement, enlightenment, epiphany, essay, establishment, evidence, evincement, exhibit, expression, fact, facts, factual information,
familiarization,
feeling out, fireresisting, fireproof, first draft,
flameproof, foolproof, fortification, foundry
proof, galley, galley
proof, gen, general
information, get out, ground, grounds, grounds for belief,
guidebook, handout, hard information,
hectograph,
hectograph copy, hermetic, holeproof, impenetrable, impervious, impervious to,
impregnable,
impress, impression, imprint, incarnation, incidental
information, incontrovertible evidence, indication, indisputable
evidence, induction,
inductive reasoning, info,
information,
instruction,
insulate, intelligence, ironclad
proof, issue, item of
evidence, kiteflying,
knowledge, leakproof, light, logical thought, manifestation, mark, material grounds, materialization,
measure, mention, message, mimeograph, mimeograph copy,
multigraph, muniments, mute witness,
negative, noiseproof, notice, notification, offprint, onus, onus probandi, ordeal, overprint, page proof,
philosophy, photocopy, photograph, photostatic copy,
piece of evidence, plate proof, pneumatophany, positive, premises, presentation, press proof,
print, probation, progressive proof,
promotional material, proof against, proof before letter, proof
sheet, protective,
prove, proving, proving out, publication, publicity, publish, pull, pull a proof, punctureproof, put out,
put to bed, put to press, ratification, ratiocination, rationalism, rationality, rationalization,
rationalizing,
reason, reason to
believe, reasonableness, reasoning, reinforcement, reissue, release, relevant fact, report, reprint, repro proof, resistant, revelation, revise, rough draft, rough
sketch, run, run off,
rustproof, settlement, shatterproof, shellproof, sidelight, sign, slip, sophistry, sounding out,
soundproof, specious
reasoning, stamp, standard, stat, statement, stone proof,
strengthening,
strike, strong, substantiation, support, supporting evidence,
sure sign, sweet reason, symptom, tempered, test, test case, testament, testimonial, testimony, the dope, the
goods, the know, the scoop, theophany, tight, token, touchstone, tough, transmission, trial, trial impression, try, undergirding, unmistakable
sign, validation,
vandyke, verification, waterproof, watertight, weatherproof, wherefore, white book, white
paper, why, whyfor, witness, word