/ Dictionary / Index A agin: Meaning and Definition of Find definitions for: a•gin Pronunciation: (u-gin'), [key] — prep. Dial. against; opposed to. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. agility Agincourt Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language