cocoa vs cocoa bean

cocoa and cocoa bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
cocoa	Yes	No	No	No
cocoa bean	Yes	No	No	No

cocoa (noun)	cocoa bean (noun)
powder of ground roasted cacao beans with most of the fat removed	seed of the cacao tree; ground roasted beans are source of chocolate
a beverage made from cocoa powder and milk and sugar; usually drunk hot