superannuation in WordNet English dictionary

1. the property of being out of date and not current
   obsoleteness  superannuation 
   
2. a monthly payment made to someone who is retired from work
   old-age pension  retirement pension  retirement check  retirement benefit  retirement fund  superannuation 
   
3. the act of discharging someone because of age (especially to cause someone to retire from service on a pension)
   superannuation