/ Dictionary / Index G group marriage: Meaning and Definition of Find definitions for: group' mar'riage Pronunciation: [key] (among primitive peoples) a form of marriage in which a group of males is united with a group of females to form a single conjugal unit. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. group life insurance groupoid Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language