A college or university teacher who ranks below an assistant professor.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "instructor" in a sentence
"I have to make note that the instructor is a big jerk off anyways – he never returned calls or emails, never available for help, and neither was the student assistant he had."
"If you are at a dance studio, find out who their instructor is and talk to that person."
"I'm a spin instructor, and I hate to admit, but I would have done the same thing!!"