duvet vs quilt

duvet and quilt both are nouns.

Word	Noun	Adjective	Verb	Adverb
duvet	Yes	No	No	No
quilt	Yes	No	Yes	No

As nouns, quilt is a hypernym of duvet; that is, quilt is a word with a broader meaning than duvet:

duvet: a soft quilt usually filled with the down of the eider
quilt: bedding made of two layers of cloth filled with stuffing and stitched together

Other hypernyms of duvet include comfort, comforter, puff.

duvet (noun)	quilt (noun)
a soft quilt usually filled with the down of the eider	bedding made of two layers of cloth filled with stuffing and stitched together

duvet (verb)	quilt (verb)
	create by stitching together
	stitch or sew together