Olea vs dicot genus

Olea and dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Olea	Yes	No	No	No
dicot genus	Yes	No	No	No

As nouns, dicot genus is a hypernym of Olea; that is, dicot genus is a word with a broader meaning than Olea:

Olea: evergreen trees and shrubs having oily one-seeded fruits
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of Olea include magnoliopsid genus.

Olea (noun)	dicot genus (noun)
evergreen trees and shrubs having oily one-seeded fruits	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination