achene vs fruit

achene and fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
achene	Yes	No	No	No
fruit	Yes	No	Yes	No

As nouns, fruit is a hypernym of achene; that is, fruit is a word with a broader meaning than achene:

achene: small dry indehiscent fruit with the seed distinct from the fruit wall
fruit: the ripened reproductive body of a seed plant

achene (noun)	fruit (noun)
small dry indehiscent fruit with the seed distinct from the fruit wall	an amount of a product
	the consequence of some effort or action
	the ripened reproductive body of a seed plant

achene (verb)	fruit (verb)
	bear fruit
	cause to bear fruit