/ Dictionary / Index O out-group: Meaning and Definition of Find definitions for: out-group Pronunciation: (out'grp"), [key] — n. Sociol. people outside one's own group, esp. as considered to be inferior or alien; a group perceived as other than one's own. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outgoing outgrow Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language