Merriam-Webster Online Dictionary
costume (noun)1.
the prevailing fashion in coiffure, jewelry, and apparel of a period, country, or class
2.
an outfit worn to create the appearance characteristic of a particular period, person, place, or thing - Halloween costumes
3.
a person's ensemble of outer garments , especially a woman's ensemble of dress with coat or jacket
transitive verb
1.
to provide with a costume
2.
to design for - costumes costume a play
1.
characterized by the use of - costumes a costume ball a costume drama
2.
suitable for or enhancing the effect of a particular costume - a costume handbag
Merriam-Webster Online Thesaurus
costume (noun)1.
clothing chosen as appropriate for a specific situation
SYNONYMS:
costume, drag, dress, garb, getup, guise, togsRELATED WORDS:
apparel, attire, clothes, duds, habiliment(s), raiment; fashion, mode, style; array, caparison, vestments2.
clothing put on to hide one's true identity or imitate someone or something else
SYNONYMS:
camouflage, costume, guiseRELATED WORDS:
domino, mask, veil, visor ( vizor), vizard; costumery, dress, getup, outfit, rig; coloring, cosmetic, makeup, paintto outfit with clothes and especially fine or special clothes
SYNONYMS:
apparel, array, attire, bedeck, caparison, costume, deck (out), do up, dress, dress up, enrobe, garb, garment, get up, gown, habit, invest, rig (out), robe, suit, tog (up out), toilet, vestureRELATED WORDS:
cloak, frock, jacket, mantle, vest; drape, enswathe, hap [], huddle, swaddle, swathe, wrap; accoutre ( accouter), bedight [], equip, furnish, habilitate, outfit, tailor, uniform; dress down, underdressNEAR ANTONYMS:
denude, divest, uncover, undrape, unveil