costume

1 clothing chosen as appropriate for a specific situation a tuxedo is the only acceptable costume for men attending a formal event Synonyms outfit, drag, dress, garb, getup, guise, togsRelated Words apparel, attire, clothes, duds, habiliment(s), raiment; fashion, mode, style; array, caparison, vestments

2 clothing put on to hide one's true identity or imitate someone or something else Halloween costumes that caricature some of the “celebrities” created by the media over the past year Synonyms camouflage, disguise, guiseRelated Words domino, mask, veil, visor (also vizor), vizard; costumery, dress, getup, outfit, rig; coloring, cosmetic, makeup, paint

to outfit with clothes and especially fine or special clothes the days when people, costumed in their Sunday best, would parade along the grand avenue on Easter Synonyms apparel, array, attire, bedeck, caparison, clothe, deck (out), do up, dress, dress up, enrobe, garb, garment, get up, gown, habit, invest, rig (out), robe, suit, tog (up or out), toilet, vestureRelated Words cloak, frock, jacket, mantle, vest; drape, enswathe, hap [dialect], huddle, swaddle, swathe, wrap; accoutre (or accouter), bedight [archaic], equip, furnish, habilitate, outfit, tailor, uniform; dress down, underdressNear Antonyms denude, divest, uncover, undrape, unveilAntonyms disarray, disrobe, strip, unclothe, undress, untruss [archaic]