strangler vs strangle

strangler is a noun but strangle is not a noun.

Word	Noun	Adjective	Verb	Adverb
strangler	Yes	No	No	No
strangle	No	No	Yes	No

strangler (noun)	strangle (noun)
someone who kills by strangling
an epiphytic vine or tree whose aerial roots extend down the trunk of a supporting tree and coalesce around it eventually strangling the tree

strangler (verb)	strangle (verb)
	constrict (someone's) throat and keep from breathing
	struggle for breath; have insufficient oxygen intake
	prevent the progress or free movement of
	die from strangulation
	kill by squeezing the throat of so as to cut off the air
	suppress in order to conceal or hide