Orchidaceae vs genus Grammatophyllum

Orchidaceae and genus Grammatophyllum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Orchidaceae	Yes	No	No	No
genus Grammatophyllum	Yes	No	No	No

Orchidaceae (noun)	genus Grammatophyllum (noun)
enormous cosmopolitan family of perennial terrestrial or epiphytic plants with fleshy tubers or rootstocks and unusual flowers	small genus of large epiphytic or terrestrial orchids of southeastern Asia to Polynesia; the giants of the Orchidaceae having long narrow leaves and drooping flower clusters often 6 feet long