ceil

1. The ceiling came down.
   天花板塌了。
2. A lamp was suspended from the ceiling above us.
   我们头顶上的天花板上吊著一盏灯。
3. Mind you don't bump your head on the low ceiling.
   天花板很低，留神别碰头。
4. My bedroom is a large room with a high ceiling.
   我的卧室是一个天花板很高的大房间。

ceil

v.tr.（及物动词）
ceiled,ceil.ing,ceils
To provide or cover with a ceiling.
装天花板，盖天花板
Nautical To provide (a ship) with interior planking or lining.
【航海】 （给船）装上内部隔板或木板

来源：
Middle English celen
中古英语 celen
probably from Old French *celer
可能源自 古法语 *celer
from Latin cael3re [to carve]
源自 拉丁语 cael3re [分割，切割]
from caelum [chisel] * see Caelum
源自 caelum [凿子] *参见 Caelum