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We found 75 dictionaries with English definitions that include the word proof:
Click on the first link on a line below to go directly to a page where "proof" is defined.
General (33 matching dictionaries)
 proof: Oxford Dictionaries [home, info]
 proof: American Heritage Dictionary of the English Language [home, info]
 proof, proof: Collins English Dictionary [home, info]
 proof: Vocabulary.com [home, info]
 proof, proof, proof, proof: Macmillan Dictionary [home, info]
 proof: MerriamWebster's Online Dictionary, 11th Edition [home, info]
 proof, proof: Cambridge Advanced Learner's Dictionary [home, info]
 Proof, proof: Wiktionary [home, info]
 proof, proof: Webster's New World College Dictionary, 4th Ed. [home, info]
 proof, proof: The Wordsmyth English DictionaryThesaurus [home, info]
 proof: Infoplease Dictionary [home, info]
 proof, proof: Dictionary.com [home, info]
 proof: Online Etymology Dictionary [home, info]
 proof: UltraLingua English Dictionary [home, info]
 proof: Cambridge Dictionary of American English [home, info]
 proof: Cambridge International Dictionary of Idioms [home, info]
 Proof (TV series), Proof (U.S. TV series), Proof (album), Proof (alcohol), Proof (coin), Proof (comics), Proof (disambiguation), Proof (film), Proof (firearms), Proof (informal), Proof (law), Proof (logic), Proof (math), Proof (mathematics), Proof (movie), Proof (philately), Proof (play), Proof (quality), Proof (rapper), Proof (resistance), Proof (truth), Proof: Wikipedia, the Free Encyclopedia [home, info]
 Proof: Online Plain Text English Dictionary [home, info]
 proof: Webster's Revised Unabridged, 1913 Edition [home, info]
 proof: Rhymezone [home, info]
 proof: AllWords.com MultiLingual Dictionary [home, info]
 proof: Webster's 1828 Dictionary [home, info]
 Proof: Dictionary of Phrase and Fable (1898) [home, info]
 Proof: 1911 edition of the Encyclopedia Britannica [home, info]
 proof: Free Dictionary [home, info]
 proof: Mnemonic Dictionary [home, info]
 proof: WordNet 1.7 Vocabulary Helper [home, info]
 proof: LookWAYup Translating Dictionary/Thesaurus [home, info]
 Proof (alcohol): The Word Detective [home, info]
 proof: Dictionary/thesaurus [home, info]
 proof: Wikimedia Commons US English Pronunciations [home, info]
Art (8 matching dictionaries)
 proof: ArtLex Lexicon of Visual Art Terminology [home, info]
 proof: Dictionary of Philosophical Terms and Names [home, info]
 Proof: EnglishChinese Dictionary of Graphic Communications (Big 5) [home, info]
 proof: Coin Collecting Glossary [home, info]
 Proof: Epicurus.com Spirits Glossary [home, info]
 PROOF: Shakespeare Glossary [home, info]
 Proof: Glossary of Stamp Collecting Terms [home, info]
 proof: ODLIS: Online Dictionary of Library and Information Science [home, info]
Business (11 matching dictionaries)
 Proof: MoneyGlossary.com [home, info]
 proof: Webster's New World Law Dictionary [home, info]
 proof: Law.com Dictionary [home, info]
 proof: Everybody's Legal Dictionary [home, info]
 proof: INVESTORWORDS [home, info]
 Proof: THE 'LECTRIC LAW LIBRARY'S REFERENCE ROOM [home, info]
 proof: Glossary of Legal Terms [home, info]
 proof: Glossary of research economics [home, info]
 PROOF: Bouvier's Law Dictionary 1856 Edition [home, info]
 Proof (disambiguation), proof: Legal dictionary [home, info]
 proof: BusinessDictionary.com [home, info]
Computing (2 matching dictionaries)
 proof: Free Online Dictionary of Computing [home, info]
 Proof (alcohol), Proof (disambiguation), Proof (logic), Proof (rapper), proof: Encyclopedia [home, info]
Medicine (2 matching dictionaries)
 proof: online medical dictionary [home, info]
 Proof (disambiguation), proof: Medical dictionary [home, info]
Miscellaneous (4 matching dictionaries)
 PROOF: Acronym Finder [home, info]
 PROOF: AbbreviationZ [home, info]
 Proof: SPIRITS Terminology [home, info]
 proof: Idioms [home, info]
Religion (1 matching dictionary)
 Proof: Catholic Encyclopedia [home, info]
Science (8 matching dictionaries)
 Proof: Misunderstood Physics Terms [home, info]
 Proof: A Glossary of Mathematical Terms [home, info]
 Proof: Eric Weisstein's World of Mathematics [home, info]
 Proof: The Computational Beauty of Nature [home, info]
 proof: PlanetMath Encyclopedia [home, info]
 Proof: Physic and Astronomy Glossary [home, info]
 proof (prf): How Many? A Dictionary of Units of Measurement [home, info]
 proof: FOLDOP  Free On Line Dictionary Of Philosophy [home, info]
Tech (6 matching dictionaries)
 proof: Book Binding [home, info]
 Proof: Culinary Cafe [home, info]
 Proof: Glossary of Whisky terms [home, info]
 Proof: Happy Hour Spirit & Liqueur Dictionary [home, info]
 Proof: Coin Collecting [home, info]
 proof: Rane Professional Audio Reference [home, info]


Quick definitions from Macmillan ()


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Quick definitions from WordNet (proof)
▸ noun: a trial photographic print from a negative
▸ 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")
▸ noun: (printing) an impression made to check for errors
▸ noun: a formal series of statements showing that if one thing is true something else necessarily follows from it
▸ noun: a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
▸ noun: the act of validating; finding or testing the truth of something
▸ verb: activate by mixing with water and sometimes sugar or milk ( "Proof yeast")
▸ verb: knead to reach proper lightness ( "Proof dough")
▸ verb: make resistant to water, sound, errors, etc. ( "Proof the materials against shrinking in the dryer")
▸ verb: make or take a proof of, such as a photographic negative, an etching, or typeset
▸ verb: read for errors ( "I should proofread my manuscripts")
▸ Word origin
▸ Words similar to proof
▸ Popular adjectives describing proof



