make up vs straighten

make up and straighten both are verbs.

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

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

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

make up (verb)	straighten (verb)
apply make-up or cosmetics to one's face to appear prettier	put (things or places) in order
put in order or neaten	make straight or straighter
come to terms	make straight
concoct something artificial or untrue	straighten by unrolling
devise or compose	straighten up or out; make straight
do or give something to somebody in return	get up from a sitting or slouching position
make up work that was missed due to absence at a later point
form or compose
adjust for