/ Dictionary / Index F fiduciary: Meaning and Definition of Find definitions for: fi•du•ci•ar•y Pronunciation: (fi-d'shē-er"ē, -dy'-), [key] — n., pl. adj. -ar•ies, —n. a person to whom property or power is entrusted for the benefit of another. —adj. of or pertaining to the relation between a fiduciary and his or her principal: a fiduciary capacity; a fiduciary duty. of, based on, or in the nature of trust and confidence, as in public affairs: a fiduciary obligation of government employees. depending on public confidence for value or currency, as fiat money. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fiduciary (Thesaurus) fiducial fiduciary bond 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