Meaning & Definition of Proof in English

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"

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

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"

4. Activate by mixing with water and sometimes sugar or milk

• "Proof yeast"

5. Make resistant (to harm)

• "Proof the materials against shrinking in the dryer"

1. (used in combination or as a suffix) able to withstand

• "Temptation-proof"

• "Childproof locks"