cooker vs popper

cooker and popper both are nouns.

Word	Noun	Adjective	Verb	Adverb
cooker	Yes	No	No	No
popper	Yes	No	No	No

As nouns, popper is a hyponym of cooker; that is, popper is a word with a more specific, narrower meaning than cooker:

Other hyponyms of cooker include Crock Pot, electric baking pan.

cooker (noun)	popper (noun)
a utensil for cooking	a container for cooking popcorn
	a container of stimulant drug (amyl nitrate or butyl nitrite)