supervisor
noun [ C ] uk/ˈsuː.pə.vaɪ.zər/ us/ˈsuː.pɚ.vaɪ.zɚ/
C1 监督者，管理者，指导者
a person whose job is to supervise someone or something
UK（某些学院中学生的）指导教师，导师
in some colleges, a teacher with responsibility for a particular student
US镇长;县长
A town or county supervisor is an elected official who manages local government services.