1 [C] a quick, sharp hit or knock on a door, window, etc （在门、窗等上的）急促敲打: There was a sharp rap on the door. 有人在急促敲门。

2 [C,U] a style or a piece of music with a fast strong rhythm, in which the words are spoken fast, not sung 说唱乐（一种节奏强劲的乐曲，歌词不是唱出来而是念出来）