fanlight /ˈfænˌlaɪt/

• 1. 

  N-COUNT A fanlight is a small window over a door or above another window. (门或窗顶上的)横楣窗; 顶窗; 气窗

  例：

  He glanced up and saw an open fanlight leading to the locked office next door.

  他向上一瞥，看到一扇开着的气窗，通向锁着的隔壁办公室。