garrotter vs strangler

garrotter and strangler both are nouns.

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

As nouns, garrotter and strangler are synonyms defined as:

Other synonyms of garrotter include choker, garroter, throttler.

garrotter (noun)	strangler (noun)
someone who kills by strangling	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