From King Dictionary of Contemporary English supervisor su‧per‧vi‧sor / ˈsuːpəvaɪzə $ -pərvaɪzər / ●○○ noun [countable ] 1 someone who supervises a person or activity 2 American English someone who is a member of the city, etc government in some parts of the US county — supervisory / ˈsuːpəvaɪzəri $ ˌsuːpərˈvaɪzəri / adjective I had a supervisory role. Examples from the Corpus supervisor • You are a supervisor of a company security department. • That will cost you some money, but it beats letting the customer stew while an employee hunts for a supervisor. • Haworth, formerly a supervisor of 120 people at a printing company, left to start his own business. • You must receive approval from a supervisor before visiting a high-risk area. • By the time his father, by then a supervisor, was given an apartment, Boris was 14. • The concept of a nominated personal educational supervisor for each preregistration house officer is an innovation in the recommendations. • Yet authority is passed down or delegated through the formal organisation; it is not passed up from supervisors to senior managers. • She has worked her way up the company and is now supervisor of 50 staff members. • We still need to replace the office supervisor. • The student's supervisor on the placement is also interviewed as part of the assessment of the student's performance. • Their supervisors are constantly giving them feedback on how to improve their standing, which they eagerly accept and respond to. From King Business Dictionary supervisor su‧per‧vis‧or / ˈsuːpəˌvaɪzə-pərˌvaɪzər / noun [countable ] JOB someone who is in charge of a group of workers or a particular area of work Any holidays not already booked should be cleared with your supervisor.