From King Dictionary of Contemporary Englishsupervisorsu‧per‧vi‧sor /ˈsuːpəvaɪzə $ -pərvaɪzər/ ●○○ noun [countable] 1 someone who supervises a person or activity2 American English someone who is a member of the city, county etc government in some parts of the USsupervisory /ˈsuːpəvaɪzəri $ ˌsuːpərˈvaɪzəri/ adjective I had a supervisory role.
Examples from the Corpus
supervisorYou 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 Dictionarysupervisorsu‧per‧vis‧or /ˈsuːpəˌvaɪzə-pərˌvaɪzər/ noun [countable]JOB someone who is in charge of a group of workers or a particular area of workAny holidays not already booked should be cleared with your supervisor.