aged vs preserved

aged is a noun but preserved is not a noun.

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

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

aged (adjective)	preserved (adjective)
(used of tobacco) aging as a preservative process	kept intact or in a particular condition
of wines, fruit, cheeses; having reached a desired or final condition; (`aged' pronounced as one syllable)	prevented from decaying or spoiling and prepared for future use
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)