coconut tree vs cocoanut

coconut tree and cocoanut both are nouns.

Word	Noun	Adjective	Verb	Adverb
coconut tree	Yes	No	No	No
cocoanut	Yes	No	No	No

coconut tree (noun)	cocoanut (noun)
tall palm tree bearing coconuts as fruits; widely planted throughout the tropics	large hard-shelled oval nut with a fibrous husk containing thick white meat surrounding a central cavity filled (when fresh) with fluid or milk