Khaya vs rosid dicot genus

Khaya and rosid dicot genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Khaya	Yes	No	No	No
rosid dicot genus	Yes	No	No	No

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

Khaya (noun)	rosid dicot genus (noun)
African mahogany trees	a genus of dicotyledonous plants