genus Nerium vs dicot genus

genus Nerium and dicot genus both are nouns.

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

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

genus Nerium: one species: oleander
dicot genus: genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination

Other hypernyms of genus Nerium include magnoliopsid genus.

genus Nerium (noun)	dicot genus (noun)
one species: oleander	genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination