gas cooker vs kitchen stove

gas cooker and kitchen stove both are nouns.

Word	Noun	Adjective	Verb	Adverb
gas cooker	Yes	No	No	No
kitchen stove	Yes	No	No	No

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

Other hypernyms of gas cooker include cooking stove, kitchen range, range, stove.

gas cooker (noun)	kitchen stove (noun)
a range with gas rings and an oven for cooking with gas	a kitchen appliance used for cooking food