instant coffee vs coffee

instant coffee and coffee both are nouns.

Word	Noun	Adjective	Verb	Adverb
instant coffee	Yes	No	No	No
coffee	Yes	No	No	No

As nouns, coffee is a hypernym of instant coffee; that is, coffee is a word with a broader meaning than instant coffee:

instant coffee: dehydrated coffee that can be made into a drink by adding hot water
coffee: a beverage consisting of an infusion of ground coffee beans

Other hypernyms of instant coffee include java.

instant coffee (noun)	coffee (noun)
dehydrated coffee that can be made into a drink by adding hot water	a medium brown to dark-brown color
	a beverage consisting of an infusion of ground coffee beans
	a seed of the coffee tree; ground to make coffee
	any of several small trees and shrubs native to the tropical Old World yielding coffee beans