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.
source: WordNet 3.0
a right reserved exclusively by a particular person or group (especially a hereditary or official right)
Suffrage was the prerogative of white adult males.
source: WordNet 3.0
Something gained from a place or employment over and above the ordinary salary or fixed wages for services rendered; especially, a fee allowed by law to an officer for a specific service.