/ Dictionary / Index O on-again, off-again: Meaning and Definition of Find definitions for: on-a•gain off-a•gain Pronunciation: (on'u-gen" ôf'u-gen", of'-, ôn'-), [key] being in force or inoperative by turns, esp. spasmodically and unpredictably: an on-again, off-again romance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ona onager Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language