make up vs straighten out

make up and straighten out both are verbs.

Word	Noun	Adjective	Verb	Adverb
make up	No	No	Yes	No
straighten out	No	No	Yes	No

As verbs, straighten out is a hypernym of make up; that is, straighten out is a word with a broader meaning than make up:

Other hypernyms of make up include clean up, neaten, square away, straighten, tidy, tidy up.

make up (verb)	straighten out (verb)
apply make-up or cosmetics to one's face to appear prettier	put (things or places) in order
put in order or neaten	settle or put right
come to terms	change for the better
concoct something artificial or untrue	make free from confusion or ambiguity; make clear
devise or compose	make straight
do or give something to somebody in return	extricate from entanglement
make up work that was missed due to absence at a later point
form or compose
adjust for