supervisor
n. countablen. a person who is in charge of a group of workers or a specific project. You go to this person if you have a problem at work or need someone to check your progress.
n. a person who oversees a process, project, or group of subordinates to ensure tasks are completed correctly. Often used in academic contexts to refer to a professor guiding a student's research.
My supervisor approved my request for a day off.
The site supervisor conducts a safety briefing every morning before the construction crew starts their shift.
While the department head manages the budget, your immediate supervisor is responsible for your daily performance reviews and professional development goals.
Attested since the 15th century C.E.; from Middle English supervisor, supervisour, supervysor, supervysour, from Latin supervīsor, from supervideō, in turn from super + videō. By surface analysis, supervise + -or.