The senior presiding justice of a court.
The senior member of some group of people.
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).
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 hill.
To serve as a dean.
To send (a student) to see the dean of a college or university.