costume = kostium, przebranie

Dragon Infant / Toddler Costume | BuyCostumes.com

Source: http://www.buycostumes.com/p/38187/dragon-infant-toddler-costume

kostium, przebranie

English sentence and Polish translation

I had to go home and work on my costume. = Musiałam pójść do domu pracować nad kostiumem.