leash

Short definition from Wiktionary

Noun

1. 1
   A strap, cord or rope with which to restrain an animal, often a dog.
2. 2
   A brace and a half; a tierce.
3. 3
   A set of three animals (especially greyhounds, foxes, bucks, and hares;)
4. 4
   A group of three.
5. 5
   A string with a loop at the end for lifting warp threads, in a loom.
6. 6
   A leg rope.
7. 7
   A kind of metrical construct in Skeltonics.

Verb

1. 1
   To fasten or secure with a leash.
2. 2
   to curb, restrain