cookstove vs stove

cookstove and stove both are nouns.

Word	Noun	Adjective	Verb	Adverb
cookstove	Yes	No	No	No
stove	Yes	No	No	No

As nouns, stove is a hypernym of cookstove; that is, stove is a word with a broader meaning than cookstove:

cookstove: a stove for cooking (especially a wood- or coal-burning kitchen stove)
stove: a kitchen appliance used for cooking food

Other hypernyms of cookstove include cooking stove, kitchen range, kitchen stove, range.

cookstove (noun)	stove (noun)
a stove for cooking (especially a wood- or coal-burning kitchen stove)	any heating apparatus
	a kitchen appliance used for cooking food