Chancellor

noun

1. A senior secretary or official with administrative or legal duties, sometimes in charge of some area of government such as finance or justice.

   "Chancellor of the Duchy of Lancaster  Lord Chancellor"

2. The head of the government in some German-speaking countries.

   "the Austrian Chancellor"

3. A senior record keeper of a cathedral; a senior legal officer for a bishop or diocese in charge of hearing cases involving ecclesiastical law.
4. The head of a university, sometimes purely ceremonial.
5. Short for Chancellor of the Exchequer.