/ Dictionary / Index I in esse*: Meaning and Definition of Find definitions for: in es•se Pronunciation: (in es'e Eng. in es'ē), [key] — Latin. Latin. in being; in actuality; in actual existence (contrasted with in posse). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. inescapable inessential Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language