rehabilitate vs rehabilitation

rehabilitate is not a noun while rehabilitation is a noun.

Word	Noun	Adjective	Verb	Adverb
rehabilitate	No	No	Yes	No
rehabilitation	Yes	No	No	No

rehabilitate (noun)	rehabilitation (noun)
	the conversion of wasteland into land suitable for use of habitation or cultivation
	the restoration of someone to a useful place in society
	the treatment of physical disabilities by massage and electrotherapy and exercises
	vindication of a person's character and the re-establishment of that person's reputation

rehabilitate (verb)	rehabilitation (verb)
help to readapt, as to a former state of health or good repute
reinstall politically
restore to a state of good condition or operation