Do you know Professor Arditty by any chance?

He was a former university professor and researcher.

Tom doesn't want to be a professional musician.

Many couples these days are having divorce ceremonies, complete with divorce vows, conducted by professional civil celebrants.

I want to be a professional violinist.

What's his professor's name?

The professor teaches Czech.

Do you happen to know any Professor Braun?

He's a professor at the National University.

Professor Kai has been studying insects for forty years.