/ Dictionary / Index C checkback: Meaning and Definition of Find definitions for: check•back Pronunciation: (chek'bak"), [key] — n. a check or verification of a process, tabulation, etc., already completed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. checkable check bit Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language