dormer window

noun

1. 老虎窗；（建在斜屋顶上的竖式）屋顶窗，天窗
   a vertical window in a room that is built into a sloping roof

1. An oval or round dormer window.
   一种椭圆形或是圆形的凸肚窗。
2. Nevertheless she went to a dormer window in the staircase and read the letter once more.
   但当她走到楼梯上时又拿出那封信，凑近天窗，又念了一遍。

noun

1. a gabled extension built out from a sloping roof to accommodate a vertical window

   Synonym:    dormer

2. the window in a gabled extension built to accommodate a window