n.[C]

1. （拴狗等的）皮带，链条
   walk a dog on a leash

   牵着皮带遛狗

2. （打猎用语）三只；成三的一组

vt.

1. （用皮带等）拴住，系住
2. 约束，控制
   He leashed his anger and did not say a harsh word.

   他压住怒气，没有说一句难听的话。

n.

1. a dog's lead.
2. Falconry  a thong or string attached to the jesses of a hawk, used for tying it to a perch or creance.

v.