/ Dictionary / Index C check bit: Meaning and Definition of Find definitions for: check' bit" Pronunciation: [key] — Computers. Computers. a binary digit used as part of a unit of information that is intended to indicate whether or not an error has occurred in the transmission or storage of the information. Cf. parity bit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. checkback checkbook Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language