n.[C]

1. （摇篮等的）弧形摇杆
2. 摇篮；摇椅
   Harry Truman loved to sit in an old rocker in the evenings.

   晚上，哈里·杜鲁门喜欢坐在一张旧摇椅上。

3. 摇动者；摇摇篮的人
4. 【矿】淘金摇动槽
5. 【印】（制网线钢版用）锯齿形篦板
6. （军士V形臂章上的）弧形条纹
7. 【美】【口】摇滚乐演奏者；摇滚歌手；摇滚乐迷；摇滚歌曲

n.

1. a person who performs, dances to, or enjoys rock music.
   ▸a rock song.
   ▸Brit. a young person, especially in the 1960s, belonging to a subculture characterized by leather clothing, riding motorcycles, and a liking for rock music.
2. a rocking chair.
3. a curved bar or similar support on which something such as a chair can rock.
   ▸a rocking device forming part of a mechanism.
4. the amount of curvature in the longitudinal contour of a boat or surfboard.