/ Dictionary / Index A ago: Meaning and Definition of Find definitions for: a•go Pronunciation: (u-gō'), [key] — adj. gone; gone by; past (usually prec. by a noun): five days ago. —adv. in past time; in the past: All this happened long ago. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ago (Thesaurus) Agnus Dei agog Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language