The most senior rank for an academic at a university or similar institution, informally also known as "full professor." Abbreviated Prof.
"After years of hard work, Dr. Lee finally received her permanent professor title at the university."
The title for someone who holds the professor job.
In plain English: A professor is a teacher who works at a college or university and usually has an advanced degree in their subject.
"My professor explained the complex theory in a way that everyone could understand."
Usage: Use "professor" to address or refer to a university faculty member who holds the highest academic rank and has completed advanced teaching requirements. Do not use this term for instructors at lower levels, such as lecturers or adjuncts, unless they specifically hold that title.
The word "professor" comes from the Latin professor, meaning a declarer or someone who claims to have knowledge. It entered English via Anglo-Norman and Middle French before settling into its current form.