/ Dictionary / Index F folie*: Meaning and Definition of Find definitions for: fo•lie Pronunciation: (fô-lē'), [key] — pl. -lies madness; insanity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. folic acid folie à deux Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language