scrunch up vs hunker

scrunch up and hunker both are verbs.

Word	Noun	Adjective	Verb	Adverb
scrunch up	No	No	Yes	No
hunker	No	No	Yes	No

As verbs, scrunch up and hunker are synonyms defined as:

Other synonyms of scrunch up include crouch, hunker down, scrunch, squat.

scrunch up (verb)	hunker (verb)
make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic	sit on one's heels
sit on one's heels