professor

noun

1. 1.The most senior rank for an academic at a university or similar institution, informally also known as "full professor." Abbreviated Prof.
2. 2.A teacher or faculty member at a college or university regardless of formal rank.
3. 3.One who professes something, such as a religious doctrine.
4. 4.A pianist in a saloon, brothel, etc.
5. 5.The puppeteer who performs a Punch and Judy show; a Punchman.