perquisite in WordNet English dictionary

1. a right reserved exclusively by a particular person or group (especially a hereditary or official right)
   "suffrage was the prerogative of white adult males"
   prerogative  privilege  perquisite  exclusive right 
   
2. an incidental benefit awarded for certain types of employment (especially if it is regarded as a right)
   "a limousine is one of the fringe benefits of the job"
   fringe benefit  perquisite  perk