patchwork quilt vs comforter

patchwork quilt and comforter both are nouns.

Word	Noun	Adjective	Verb	Adverb
patchwork quilt	Yes	No	No	No
comforter	Yes	No	No	No

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

patchwork quilt: a quilt made by sewing patches of different materials together
comforter: bedding made of two layers of cloth filled with stuffing and stitched together

Other hypernyms of patchwork quilt include comfort, puff, quilt.

patchwork quilt (noun)	comforter (noun)
a quilt made by sewing patches of different materials together	bedding made of two layers of cloth filled with stuffing and stitched together
	device used for an infant to suck or bite on
	a person who commiserates with someone who has had misfortune
	a person who reduces the intensity (e.g., of fears) and calms and pacifies