/ ˈsuːpəvaɪzə(r); ˈsjuː-; NAmE ˈsuːpərv-/ noun
a person who supervises sb/sth :
I have a meeting with my supervisor about my research topic.
► super·vis·ory / ˌsuːpəˈvaɪzəri; ˌsjuː-; NAmE ˌsuːpərˈv-/ adjective :
She has a supervisory role on the project.