/ Dictionary / Index S speaking in tongues: Meaning and Definition of Find definitions for: speak'ing in tongues' Pronunciation: [key] a form of glossolalia in which a person experiencing religious ecstasy utters incomprehensible sounds that the speaker believes are a language spoken through him or her by a deity. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. speaking speaking tube 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