hunker vs scrunch up

hunker and scrunch up both are verbs.

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

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

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

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