/ Dictionary / Index T trust company: Meaning and Definition of Find definitions for: trust' com"pany Pronunciation: [key] a company or corporation organized to exercise the functions of a trustee, but usually engaging also in other banking and financial activities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trustbuster trust deed Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language