coffee royal vs coffee

coffee royal and coffee both are nouns.

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

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

Other hypernyms of coffee royal include java.

coffee royal (noun)	coffee (noun)
black coffee with Cognac and lemon peel and sugar	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