IPA: //kəˈstjuːmiːə//
KK: /kɑːˈstjuːmiːə/
A person who designs, makes, or provides costumes, especially for theater, film, or other performances.
The costumier created stunning outfits for the play that captivated the audience.
Costumier is derived from the French word 'costume' (meaning a set of clothes or attire) and the suffix '-ier' (meaning one who does or is associated with). Therefore, a costumier is someone who is associated with or specializes in costumes.
Think of a 'costume' as a special outfit, and remember that a 'costumier' is someone who specializes in creating or providing those outfits.