plural vs bell-bottoms

plural and bell-bottoms both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural	Yes	Yes	No	No
bell-bottoms	Yes	No	No	No

plural (noun)	bell-bottoms (noun)
the form of a word that is used to denote more than one	(used in the plural) trousers with legs that flare; worn by sailors; absurdly wide hems were fashionable in the 1960s

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