loveseat vs couch

loveseat and couch both are nouns.

Word	Noun	Adjective	Verb	Adverb
loveseat	Yes	No	No	No
couch	Yes	No	Yes	No

As nouns, couch is a hypernym of loveseat; that is, couch is a word with a broader meaning than loveseat:

Other hypernyms of loveseat include lounge, sofa.

loveseat (noun)	couch (noun)
small sofa that seats two people	an upholstered seat for more than one person
	a narrow bed on which a patient lies during psychiatric or psychoanalytic treatment
	a flat coat of paint or varnish used by artists as a primer

loveseat (verb)	couch (verb)
	formulate in a particular style or language