seniority
Pronunciation:
/siːnɪˈɒɹɪti//sinˈjɔɹɪti/noun
Definitions
A measure of the amount of time a person has been a member of an organization, as compared to other members, and with an eye towards awarding privileges to those who have been members longer.
Example: It's an old-fashioned company, with parking spaces and other perks doled out on the basis of seniority.