genus Aster vs family Compositae

genus Aster and family Compositae both are nouns.

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

genus Aster (noun)	family Compositae (noun)
large genus of herbs widely cultivated for their daisylike flowers	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia