proof >> /pruf/
Definition: [transitive verb] Make (fabric) waterproof.
Example: if you are using a piece of lightweight canvas it will be necessary to proof the fabric when complete
Definition: [transitive verb] Make a proof of (a printed work, engraving, etc.)
Example: proof each plate and print it on acetate first
Definition: [transitive verb] Activate (yeast) by the addition of liquid.
Example: proof the yeast with the teaspoon of sugar
Definition: [noun] Evidence or argument establishing or helping to establish a fact or the truth of a statement.
Example: you will be asked to give proof of your identity
Definition: [noun] A trial impression of a page, taken from type or film and used for making corrections before final printing.
Example: I was scheduled to spend much of the day correcting the final proofs of my forthcoming biography, Nehru: The Invention of India.
Definition: [noun] The strength of distilled alcoholic liquor, relative to proof spirit taken as a standard of 100.
Example: powerful 132-proof rum
Definition: [noun] A test or trial of something.
Definition: [adjective] Able to withstand something damaging; resistant.
Example: the marine battle armor was proof against most weapons
Definition: [adjective] Denoting a trial impression of a page or printed work.
Example: a proof copy is sent up for checking