/ Dictionary / Index O onlooking: Meaning and Definition of Find definitions for: on•look•ing Pronunciation: (on'look"ing, ôn'-), [key] — adj. looking on; observing; perceiving. looking onward or foreboding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. onlooker only Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language