My mother is a professor .is an academic rank at universities 
Thats interesting! What does she teach? 
She's an  an expert in arts or sciences, a teacher of the highest rank.
Wow that's inspiring! how do you become a professor of the highest rank?
Professor
Professor (commonly abbreviated as Prof.) is an academic rank at universities and other post-secondary education and research institutions in most countries. Literally, "professor" derives from Latin as a "person who professes" being usually an expert in arts or sciences, a teacher of the highest rank.
In most systems of academic ranks the word "Professor" only refers to the most senior academic position, sometimes informally known as "full professor". In some countries or institutions, the word "professor"
Professor (disambiguation)
A professor is a senior teacher, lecturer and researcher, usually in a college or university.
Professor may also refer to:
- Professor (highest academic rank), highest academic rank at universities
Entertainment.
Entertainment Fictional characters.
- List of fictional professors
- "Professor" Irwin Corey, a comedy persona
- "Professor" Stanley Unwin, an English comedian
- The Professor ("Gilligan's Island"), one of the seven castaway characters in the 1960s