genus Zinnia vs family Compositae

genus Zinnia and family Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Zinnia	Yes	No	No	No
family Compositae	Yes	No	No	No

genus Zinnia (noun)	family Compositae (noun)
genus of annual or perennial plants of tropical America having solitary heads of brightly colored flowers	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia