/ Dictionary / Index C Cadillac: Meaning and Definition of Find definitions for: Cad•il•lac Pronunciation: (kad'l-ak" for 1 also Fr. ka-dē-yak'), [key] — n. 1657?–1730, French colonial governor in North America: founder of Detroit. a city in NW Michigan. 10,199. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cadi Cadiz Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language