1. (n.) A title of courtesy prefixed to the name of a man or youth. It is usually written in the abbreviated form Mr.

2. (v. t.) To address or mention by the title Mr.; as, he mistered me in a formal way.

3. (n.) A trade, art, or occupation.

4. (n.) Manner; kind; sort.

5. (n.) Need; necessity.

6. (v. i.) To be needful or of use.

Herr Master Mister abecedarian assume bwana certified teacher change docent doctor dominie draw on dress in educationist educator fellow get into get on guide guru instructor maestro master melamed mentor misrepresent monsieur mullah pandit pedagogist pedagogue preceptor professor pundit put on rabbi sahib schoolkeeper schoolmaster schoolteacher signor sir slip slip on starets teacher