A dignitary or presiding officer in certain church bodies, especially an ecclesiastical dignitary, subordinate to a bishop, in charge of a chapter of canons.
A senior official in a college or university, who may be in charge of a division or faculty (for example, the dean of science) or have some other advisory or disciplinary function (for example, the dean of students).
The senior member of some group of people.
A hill.
To serve as a dean.
To send (a student) to see the dean of a college or university.
The main priest serving a parish.