/ Dictionary / Index C certified check: Meaning and Definition of Find definitions for: cer'tified check' Pronunciation: [key] a check bearing a guarantee of payment by the bank on which the check is drawn. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. certified certified mail Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language