1 [T] (used about a film, play, etc) to have two or more famous actors as its stars （指电影、戏剧等）（由两位或以上的明星）合演，联合主演: a film co-starring Leonardo di Caprio and Kate Winslett 一部由李奥纳多˙狄˙卡普里欧和凯特˙温斯莱特合演的电影

2 [I] (used about actors) to be one of two or more stars in a film, play, etc （指演员）（与其他演员）合演: Kate Winslett co-stars with Leonardo di Caprio in the film. 凯特˙温斯莱特与李奥纳多˙狄˙卡普里欧在这部影片中携手演出。 co-star noun [C]:His co-star was Marilyn Monroe. 他的搭挡演员是玛丽莲梦露。