street clothes vs plural

street clothes and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
street clothes	Yes	No	No	No
plural	Yes	Yes	No	No

street clothes (noun)	plural (noun)
ordinary clothing suitable for public appearances (as opposed to costumes or sports apparel or work clothes etc.)	the form of a word that is used to denote more than one

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