A teacher in charge of a boarding house at a boarding school. / A teacher in charge of a sports house at a school.

plural of Old Master

plural of Grand Master

(data management) Reference data.

(sociology) A social status that is the primary socially identifying characteristic of an individual, such as being the queen.

plural of question-master

A quizmaster.

Any of various early European painters whose works are regarded as superlative. / A painting by an Old Master.

(printing) A metal sheet used in offset printing for carrying ink onto the rubber printing form.

(role-playing games) A game master in Dungeons & Dragons games.