/ Dictionary / Index C costumery: Meaning and Definition of Find definitions for: cos•tum•er•y Pronunciation: (ko-st'mu-rē, -sty'-), [key] — n. items of costume. the art of designing, making, or providing costumes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. costumer costumier Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language