(1) A privilege or profit that is provided in addition to one's base salary. (2) Something claimed as an exclusive possession or right.
Example:
A new car, a big house, and yearly trips to Europe were among the perquisites that made the presidency of Wyndam College such an attractive position.
A perquisite, often referred to simply as a perk, is usually something of value to which the holder of a particular job or position is entitled. The President of the United States, for instance, enjoys the perquisites of the use of the White House, Camp David, and Air Force One. Perhaps because perquisites are usually available to only a small number of people, the word sometimes refers to non-job-related privileges that are claimed as exclusive rights. It often is very close in meaning to prerogative.