gown
noun [ C ] uk/ɡaʊn/ us/ɡaʊn/
（尤指正式场合穿的）女式礼服
a woman's dress, especially a long one worn on formal occasions
a ball gown 舞会礼服
（特定场合穿的）长袍，罩衣，长外衣
a long, loose piece of clothing worn over other clothes for a particular purpose
a hospital gown 病号服