/ Dictionary / Index F fornicate: Meaning and Definition of Find definitions for: for•ni•cate Pronunciation: (fôr'ni-kāt"), [key] — -cat•ed, -cat•ing. to commit fornication. for•ni•cate Pronunciation: (fôr'ni-kit, -kāt"), [key] — adj. Biol. arched or vaulted in form. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fornicate (Thesaurus) Forney fornication Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language