scarf vs muffler

scarf and muffler both are nouns.

Word	Noun	Adjective	Verb	Adverb
scarf	Yes	No	Yes	No
muffler	Yes	No	No	No

As nouns, muffler is a hyponym of scarf; that is, muffler is a word with a more specific, narrower meaning than scarf:

scarf: a garment worn around the head or neck or shoulders for warmth or decoration
muffler: a scarf worn around the neck

Other hyponyms of scarf include boa, feather boa, fichu, kerchief, lambrequin, mantilla, patka, rebozo, sable, stole, tudung.

scarf (noun)	muffler (noun)
a garment worn around the head or neck or shoulders for warmth or decoration	a scarf worn around the neck
a joint made by notching the ends of two pieces of timber or metal so that they will lock together end-to-end	a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
	a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations

scarf (verb)	muffler (verb)
wrap in or adorn with a scarf
masturbate while strangling oneself
unite by a scarf joint