Rapateaceae vs monocot family

Rapateaceae and monocot family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rapateaceae	Yes	No	No	No
monocot family	Yes	No	No	No

As nouns, monocot family is a hypernym of Rapateaceae; that is, monocot family is a word with a broader meaning than Rapateaceae:

Rapateaceae: South American herbs somewhat resembling members of the Juncaceae
monocot family: family of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Rapateaceae include liliopsid family.

Rapateaceae (noun)	monocot family (noun)
South American herbs somewhat resembling members of the Juncaceae	family of flowering plants having a single cotyledon (embryonic leaf) in the seed