WordNet sense 1 (people who are old collectively):

elderly

WordNet sense 2 (affected by wear; damaged by long use):

worn

WordNet sense 3 (having attained a specific age; (`aged' is pronounced as one syllable)):

of age

WordNet sense 4 (advanced in years; (`aged' is pronounced as two syllables)):

senior, older

WordNet sense 5 ((used especially of persons) having lived for a relatively long time or attained a specific age):

old

WordNet sense 6 (of wines, fruit, cheeses; having reached a desired or final condition; (`aged' pronounced as one syllable)):

ripened

WordNet sense 7 (fully developed or matured and ready to be eaten or used):

mature

WordNet sense 8 ((used of tobacco) aging as a preservative process (`aged' is pronounced as one syllable)):

cured

WordNet sense 9 (prevented from decaying or spoiling and prepared for future use):

preserved