n.
1.a former monetary unit in Great Britain
2.a hair style for women and children
3.a long racing sled (for 2 or more people) with a steering mechanism
4.a hanging weight, especially a metal ball on a string
5.a small float usually made of cork
6.a short or shortened tail of certain animals
7.a short abrupt inclination (as of the head) bob v.
1.move up and down repeatedly
2.ride a bobsled
3.remove or shorten the tail of an animal
4.make a curtsy
5.cut hair in the style of a bob