packaged goods vs plural

packaged goods and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
packaged goods	Yes	No	No	No
plural	Yes	Yes	No	No

packaged goods (noun)	plural (noun)
groceries that are packaged for sale	the form of a word that is used to denote more than one

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