slip noose vs clench

slip noose and clench both are nouns.

Word	Noun	Adjective	Verb	Adverb
slip noose	Yes	No	No	No
clench	Yes	No	Yes	No

As nouns, clench is a hyponym of slip noose; that is, clench is a word with a more specific, narrower meaning than slip noose:

slip noose: a loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled
clench: a small slip noose made with seizing

Other hyponyms of slip noose include clinch.

slip noose (noun)	clench (noun)
a loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled	the act of grasping
	a small slip noose made with seizing

slip noose (verb)	clench (verb)
	hold in a tight grasp
	squeeze together tightly