plural vs dry cleaners

plural and dry cleaners both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural	Yes	Yes	No	No
dry cleaners	Yes	No	No	No

plural (noun)	dry cleaners (noun)
the form of a word that is used to denote more than one	shop where dry cleaning is done

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