[noun] [C]The shop assistant said that he needed to get his supervisor (= the person who was in charge of him) to authorize my refund.In some colleges, a supervisor is also a teacher with responsibility for a particular student.My supervisor wants my essay in by Friday.(US) A town or county supervisor is an elected official who manages local government services.
SUPERVISOR
Meaning of SUPERVISOR in English
Cambridge English vocab. Кембриджский английский словарь. 2012