badlands vs plural

badlands and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
badlands	Yes	No	No	No
plural	Yes	Yes	No	No

badlands (noun)	plural (noun)
deeply eroded barren land	the form of a word that is used to denote more than one

badlands (adjective)	plural (adjective)
	grammatical number category referring to two or more items or units
	composed of more than one member, set, or kind