cookstove vs kitchen range

cookstove and kitchen range both are nouns.

Word	Noun	Adjective	Verb	Adverb
cookstove	Yes	No	No	No
kitchen range	Yes	No	No	No

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

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

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

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