Alcidae vs Charadriiformes

Alcidae and Charadriiformes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alcidae	Yes	No	No	No
Charadriiformes	Yes	No	No	No

Alcidae (noun)	Charadriiformes (noun)
web-footed diving seabirds of northern seas: auks, puffins, guillemots, murres, etc.	large diverse order of aquatic birds found along seacoasts and inland waters: shorebirds and coastal diving birds; most feed on animal life