/ Dictionary / Index C customs broker: Meaning and Definition of Find definitions for: cus'toms bro"ker Pronunciation: [key] a person or firm that clears goods or merchandise through customs for a consignee or shipper. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. custom-order customs union Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language