Nouns

(n)snare, gin, noosea trap for birds or small mammals; often has a slip noose
(n)noose, running noose, slip noosea loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled

Verbs

(v)noosemake a noose in or of
(v)noosesecure with a noose