/ Dictionary / Index S subsidiary company: Meaning and Definition of Find definitions for: subsid'iary com'pany Pronunciation: [key] a company whose controlling interest is owned by another company. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subsidiary coin subsidiary ledger Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language