clench vs double clinch

clench and double clinch both are nouns.

Word	Noun	Adjective	Verb	Adverb
clench	Yes	No	Yes	No
double clinch	Yes	No	No	No

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

Other hyponyms of clench include inside clinch, outside clinch.

clench (noun)	double clinch (noun)
the act of grasping	a clinch with two loops
a small slip noose made with seizing

clench (verb)	double clinch (verb)
hold in a tight grasp
squeeze together tightly