pro‧fes‧sor [countable]
1SEC British English a teacher of the highest rank in a university department:
Professor Barclay
professor of Chinese/economics/religion etc
She's been named the professor of English.
2 American EnglishSEC a teacher at a university or college:
biology/history/French etc professor
Who's your chemistry professor?
assistant professor, associate professorsee usage note teacher

teacher, professor, lecturer, tutor, instructor, coach, trainer
A teacher usually works in a school Do the children like their new teacher? A professor is a teacher of the highest rank in a British university, and is a general term for a teacher in an American college.Someone who teaches in a British university and who is not a professor is called a lecturer.A tutor gives lessons to just one student or a small group of students, especially privately in their home or a student's home a private tutorAn instructor is someone who helps people learn a sport or practical skill, such as driving, skiing, or swimming a riding instructorA coach is someone who helps a person or a team to improve in a sport the school swimming coachA trainer is someone who teaches people the skills they need for a job a teacher trainer. It is also someone who teaches skills to animals a racehorse trainerSee also teacher

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