/ Dictionary / Index C c'est-à-dire*: Meaning and Definition of Find definitions for: c'est-à-dire Pronunciation: (se-ta-dēr'), [key] — French. French. that is to say. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cesta c'est autre chose* Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language