preserved vs aged

preserved is not a noun while aged is a noun.

Word	Noun	Adjective	Verb	Adverb
preserved	No	Yes	No	No
aged	Yes	Yes	No	No

preserved (noun)	aged (noun)
	people who are old collectively

preserved (adjective)	aged (adjective)
kept intact or in a particular condition	(used of tobacco) aging as a preservative process
prevented from decaying or spoiling and prepared for future use	of wines, fruit, cheeses; having reached a desired or final condition; (`aged' pronounced as one syllable)
	at an advanced stage of erosion (pronounced as one syllable)
	advanced in years; (`aged' is pronounced as two syllables)
	having attained a specific age; (`aged' is pronounced as one syllable)