older in WordNet English dictionary

1. advanced in years; (`aged' is pronounced as two syllables)
   "aged members of the society"; "elderly residents could remember the construction of the first skyscraper"; "senior citizen"
   aged  elderly  older  senior 
   
2. used of the older of two persons of the same name especially used to distinguish a father from his son
   "Bill Adams, Sr."
   elder  older  sr. 
   
3. skilled through long experience
   "an old offender"; "the older soldiers"
   old  older 
   

older in English Wiktionary