/ Dictionary / Index F federacy: Meaning and Definition of Find definitions for: fed•er•a•cy Pronunciation: (fed'ur-u-sē), [key] — pl. -cies. a confederacy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fedelini federal Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language