The official who witnesses signature by the sailors of the articles of agreement.

plural of shipping master

plural of Little Master

(art, historical) Any of a group of German printmakers who produced finely detailed miniature prints in the first half of the 16th century.

plural of passed master

Archaic form of past master.

plural of master of the horse

(historical) The Ancient Roman Magister Equitum, an official appointed by the dictator to act next under himself.

(education) A teaching philosophy stating that students must achieve a level of mastery in each topic (e.g. 90% in a test) before moving on to further topics.

(education) The combination of flipped learning and mastery learning.