roll out vs straighten

roll out is a noun but straighten is not a noun.

Word	Noun	Adjective	Verb	Adverb
roll out	Yes	No	Yes	No
straighten	No	No	Yes	No

As verbs, roll out and straighten are synonyms defined as:

roll out (noun)	straighten (noun)
the act of officially distributing a new product or service to the public

roll out (verb)	straighten (verb)
flatten or spread with a roller	put (things or places) in order
straighten by unrolling	make straight or straighter
to distribute systematically or strategically	make straight
officially distribute a new product or service to the public	straighten by unrolling
	straighten up or out; make straight
	get up from a sitting or slouching position