/ Dictionary / Index E eftsoon: Meaning and Definition of Find definitions for: eft•soon Pronunciation: (eft-sn'), [key] — adv. Archaic. soon afterward. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. EFTS Eg. Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language