proof

³proof

verb

Definition of PROOF

transitive verb

1

a : to make or take a proof or test of b : proofread

2

: to give a resistant quality to

3

: to activate (yeast) by mixing with water and sometimes sugar or milk

— proof·er noun

Examples of PROOF

1. She proofed the story carefully.

First Known Use of PROOF

1745

Other Printing Terms

epigraph, errata, leader, mechanical, notch, tittle, underscore, widow