plural vs houselights

plural and houselights both are nouns.

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

plural (noun)	houselights (noun)
the form of a word that is used to denote more than one	lights that illuminate the audience's part of a theater or other auditorium

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