Proof Definition
pro͝of
proofed, proofing, proofs
noun
proofs
The act or process of proving; a testing or trying of something.
Webster's New World
The evidence or argument that compels the mind to accept an assertion as true.
American Heritage
Anything serving or tending to establish the truth of something, or to convince one of its truth; conclusive evidence.
Webster's New World
The validation of a proposition by application of specified rules, as of induction or deduction, to assumptions, axioms, and sequentially derived conclusions.
American Heritage
A statement or argument used in such a validation.
American Heritage
Synonyms:
- foundry proof
- stereo proof
- page-proof
- galley-proof
- revise
- slip
- pull
- trial impression
- trial proof
- test copy
- cogent evidence
- substantiation
- validation
- trial
- test
Antonyms:
adjective
Of tested and proved strength.
Webster's New World
Fully or successfully resistant; impervious. Often used in combination.
Waterproof watches; a fireproof cellar door.
American Heritage
Impervious or invulnerable to; able to resist, withstand, etc.
Proof against criticism.
Webster's New World
Used to proofread or correct typeset copy.
A proof copy of the manuscript.
American Heritage
Used in proving or testing.
Webster's New World
verb
proofed, proofing, proofs
To make a proof of.
Webster's New World
To make a trial impression of (printed or engraved matter).
American Heritage
To proofread (copy).
American Heritage
To activate (dormant dry yeast) by adding water.
American Heritage
Webster's New World
affix
Impervious to.
Waterproof.
Webster's New World
Protected from or against.
Foolproof, rustproof.
Webster's New World
Resistant to, unaffected by.
Fireproof.
Webster's New World
suffix
Used to form adjectives denoting an impervious or impenetrable quality.
Wiktionary
Origin of Proof
-
Middle English prove, preve from Anglo-Norman prove and from Old French prueve both from Late Latin proba from Latin probāre to prove prove
From American Heritage Dictionary of the English Language, 5th Edition
-
From Middle English proof, from Old French prove, from Late Latin proba (“a proof"), from Latin probare (“to prove"); see prove.
From Wiktionary
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