clench vs choke hold

clench and choke hold both are nouns.

Word	Noun	Adjective	Verb	Adverb
clench	Yes	No	Yes	No
choke hold	Yes	No	No	No

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

clench: the act of grasping
choke hold: a restraining hold; someone loops the arm around the neck of another person in a tight grip, usually from behind

Other hyponyms of clench include chokehold, embrace, embracement, embracing, wrestling hold.

clench (noun)	choke hold (noun)
the act of grasping	a restraining hold; someone loops the arm around the neck of another person in a tight grip, usually from behind
a small slip noose made with seizing

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