bending vs hunch

bending and hunch both are nouns.

Word	Noun	Adjective	Verb	Adverb
bending	Yes	No	No	No
hunch	Yes	No	Yes	No

As nouns, hunch is a hyponym of bending; that is, hunch is a word with a more specific, narrower meaning than bending:

Other hyponyms of bending include flexion, flexure, crouch, incurvation.

bending (noun)	hunch (noun)
the act of bending something	the act of bending yourself into a humped position
the property of being bent or deflected	an impression that something might be the case
movement that causes the formation of a curve

bending (verb)	hunch (verb)
	round one's back by bending forward and drawing the shoulders forward