Dictionary.net

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

a trial photographic print from a negative

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

activate by mixing with water and sometimes sugar or milk; "proof yeast"

(used in combination or as a suffix) able to withstand; "temptation-proof"; "childproof locks"

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"

(printing) an impression made to check for errors

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

make resistant to water, sound, errors, etc.; "proof the materials against shrinking in the dryer"

knead to reach proper lightness; "proof dough"

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

a trial photographic print from a negative

(logic or mathematics) a formal series of statements showing that if one thing is true something else necessarily follows from it

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

make resistant, as to water, sound, errors, etc.

activate by mixing with water and sometimes sugar or milk; "proof yeast"

(used in combination or as a suffix) able to withstand; "temptation-proof"; "childproof locks"

Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial.

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.

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 trial impression, as from type, taken for correction or examination; -- called also proof sheet.

A process for testing the accuracy of an operation performed. Cf. Prove, v. t., 5.

Armor of excellent or tried quality, and deemed impenetrable; properly, armor of proof.

Used in proving or testing; as, a proof load, or proof charge.

Firm or successful in resisting; as, proof against harm; waterproof; bombproof.

Being of a certain standard as to strength; -- said of alcoholic liquors.

The means by which something is found to be true or correct; convincing evidence; a test or trial; in printing, an impression taken from type for correction; an early impression of an engraving.

That which proves: test: experiment: any process to discover or establish a truth: that which convinces: demonstration: evidence: condition of having been proved: firmness of mind: a certain strength of alcoholic spirits: (print.) an impression taken for correction, also "proof-sheet": an early impression of an engraving.

Able to withstand.

Test; evidence; demonstration; impression of types, &c., taken for correction.

Employed in or connected with proving or correcting.

Firm; impenetrable.

Of standard alcoholic strength.

The act of proving; convincing evidence.

The standard strength of alcoholic liquors.

A printed trial-sheet, as for correction.

Strong to resist impression or penetration. See Prove.

Trial or test; experiment; demonstration; that which convinces; hardness or firmness to resist; impenetrability; firmness of mind; the degree of strength in spirit; a rough impression taken for correction; an early impression of an engraving.

Evidence; testimony; test; trial; any effort, process, or operation to ascertain truth; that which convinces the mind and produces belief; capacity of resistance, as fire-proof, water-proof; firmness or stability of mind; a standard strength of spirit, containing nearly equal weights of pure alcohol and water; an impression taken from a form of type, or from an engraved plate, for examination and correction.

Able to resist something; impenetrable.

n. [French, Latin] A test ; trial ; experiment ; any process or operation to determine the nature or qualities of physical bodies, or to test their strength or fitness for specific use ;-in mathematics, experimental trial to ascertain the correctness of products or results ;- also, demonstration of a problem, theorem, &c. ;-the amount or kind of evidence which convinces the mind and produces belief, as eye-witness, testimony, conclusive argument, &c. ;-firmness of mind ; constancy ; stability ;-that which has been assayed or tested, as armour, &c. ;-state of being wrought and hardened as to resist outward force or impression ; impenetrability, as by shot or shell ;-act of testing the strength of alcoholic spirits ; also, the degree of strength ;-a trial impression from type, an engraved plate, &c., taken for correction ; evidence ; reason ; argument.