ceiling/ˋsilIŋ; ˈsiːlIŋ/n [C] 1 the inside surface at the top of a room [→ roof] 天花板: the bathroom ceiling 浴室天花板rooms with high ceilings 天花板很高的房间2 the largest amount of something which is officially allowed 上限﹐最高限度: +of a ceiling of 5.5% on wage increases 5.5% 的加薪上限