/ Dictionary / Index L looker-on: Meaning and Definition of Find definitions for: look•er-on Pronunciation: (look"ur-on', -ôn'), [key] — pl. look•ers-on. a person who looks on; onlooker; witness; spectator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: looker-on (Thesaurus) looker Look Homeward, Angel* Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language