/ Dictionary / Index C checkbook: Meaning and Definition of Find definitions for: check•book Pronunciation: (chek'book"), [key] — n. a book containing blank checks or orders on a bank. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: checkbook (Thesaurus) check bit checked Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language