Synonym: cogent evidence, proof, proofread, substantiation, test copy, trial impression, validation. Similar words: roof, uproot, go off, aloofness, room, droop, brook, troop. Meaning: [pruːf] 
n. 1. any factual evidence that helps to establish the truth of something 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 5. a trial photographic print from a negative 6. the act of validating; finding or testing the truth of something. v. 1. make or take a proof of, such as a photographic negative, an etching, or typeset 2. knead to reach proper lightness 3. read for errors 4. activate by mixing with water and sometimes sugar or milk 5. make resistant (to harm). adj. (used in combination or as a suffix) able to withstand.
n. 1. any factual evidence that helps to establish the truth of something 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 5. a trial photographic print from a negative 6. the act of validating; finding or testing the truth of something. v. 1. make or take a proof of, such as a photographic negative, an etching, or typeset 2. knead to reach proper lightness 3. read for errors 4. activate by mixing with water and sometimes sugar or milk 5. make resistant (to harm). adj. (used in combination or as a suffix) able to withstand. 
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1 A flow of words is no proof of wisdom. 
2 The proof of the pudding is in the eating.
3 It is the final proof of God's omnipltence that he need not exist in order to save us.
4 The receipt is your proof of purchase.
5 Is the claim capable of proof?
6 We have no positive proof of her guilt.
7 Can you provide any proof of identity?
8 We have abundant proof of his guilt.
9 Keep the receipt as proof of purchase.
10 Can you produce any proof of your nationality?
11 Keep your receipt as proof of purchase.
12 Do you have any proof of identity?
13 You have to have proof of residence in the state of Texas,(www.Sentencedict.com) such as a Texas ID card.
14 These results are a further proof of his outstanding ability.
15 If anyone needs proof of Andrew Davies' genius as a writer, this novel is it.
16 There is no proof that the knife belonged to her.
17 This latest interview was further proof of how good at her job Cara was.
18 Have you got any positive proof that she took the money?
19 The liquor is 80% proof.
20 'We need proof, sir.' Another pause. Then, 'Very well.'.
21 The onus of proof lies with the prosecution.
22 He is unlikely to make wild accusations without proof.
23 Their defences are proof against most weapons.
24 The witness showed unquestionable proof.
25 The rum is 30% below proof.
26 To be angry with a weak man is a proof that you are not very strong yourself.
27 Is what you say a guess or have your proof?
28 The greater one's love for a person, the less room for flattery. The proof of true love is to be unsparing in criticism.
29 Only when each logical step has been checked by other mathematicians will the proof be accepted.
30 You are only supposing this on hearsay, you have no proof.