a person who supervises workers or the work done by others; superintendent.
2.
Education. an official responsible for assisting teachers in the preparation of syllabuses, in devising teaching methods, etc., in a department of instruction, especially in public schools.
3.
(in some U.S. states) the chief elected administrative officer of a township, who is often also a member of the governing board of the county.
Origin: 1425–75; late Middle English < Medieval Latin supervīsor, equivalent to supervid-, stem of supervidēre to supervise + -tor-tor, with dt > s