muffle vs strangle

muffle is a noun but strangle is not a noun.

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

As verbs, muffle and strangle are synonyms defined as:

Other synonyms of muffle include repress, smother, stifle.

muffle (noun)	strangle (noun)
a kiln with an inner chamber for firing things at a low temperature

muffle (verb)	strangle (verb)
suppress in order to conceal or hide	constrict (someone's) throat and keep from breathing
deaden (a sound or noise), especially by wrapping	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