mix up vs pose

mix up is not a noun while pose is a noun.

Word	Noun	Adjective	Verb	Adverb
mix up	No	No	Yes	No
pose	Yes	No	Yes	No

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

Other hypernyms of mix up include amaze, baffle, beat, bewilder, dumbfound, flummox, get, gravel, mystify, nonplus, perplex, puzzle, stick, stupefy, vex.

mix up (noun)	pose (noun)
	a deliberate pretense or exaggerated display
	affected manners intended to impress others
	a posture assumed by models for photographic or artistic purposes

mix up (verb)	pose (verb)
cause to be perplexed or confounded	be a mystery or bewildering to
assemble without order or sense	pretend to be someone you are not; sometimes with fraudulent intentions
	put into a certain place or abstract location
	assume a posture as for artistic purposes
	behave affectedly or unnaturally in order to impress others
	offer for others to consider