scarf vs fichu

scarf and fichu both are nouns.

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

As nouns, fichu is a hyponym of scarf; that is, fichu 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
fichu: a lightweight triangular scarf worn by a woman

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

scarf (noun)	fichu (noun)
a garment worn around the head or neck or shoulders for warmth or decoration	a lightweight triangular scarf worn by a woman
a joint made by notching the ends of two pieces of timber or metal so that they will lock together end-to-end

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