chin up vs get up

chin up and get up both are verbs.

Word	Noun	Adjective	Verb	Adverb
chin up	No	No	Yes	No
get up	No	No	Yes	No

As verbs, get up is a hypernym of chin up; that is, get up is a word with a broader meaning than chin up:

chin up: raise oneself while hanging from one's hands until one's chin is level with the support bar
get up: raise from a lower to a higher position

Other hypernyms of chin up include bring up, elevate, lift, raise.

chin up (verb)	get up (verb)
raise oneself while hanging from one's hands until one's chin is level with the support bar	get up and out of bed
	cause to rise
	put on special clothes to appear particularly appealing and attractive
	develop
	study intensively, as before an exam
	arrange by systematic planning and united effort
	raise from a lower to a higher position
	rise to one's feet