Professor is an academic rank at universities and other post-secondary education and research institutions in most countries.
In the United States and Canada, the title of professor is granted to a senior academic who has demonstrated excellence in research, teaching, and service.
The term "professor" also refers to:
1. A teacher of the highest rank in a college or university
2. An instructor in certain art forms (e.g., "professor of dance")
3. In some contexts, any teacher at a university or college