[] () a person who is chosen to do sb else's job when that person is ill/sick or away from their office, etc. 代替者；候补者；替工◆Four delegates and four alternates were selected. 四名代表和四名候补人入选。◆She is alternate director to Mr Xue, the deputy managing director. 她是副执行董事薛先生的候补董事。