| Grand Master |
the head of a military or fraternal order. [2 definitions] |
| harbor master |
an official who supervises harbor operations and enforces regulations governing harbor use. |
| master bedroom |
in a home with multiple bedrooms, the largest bedroom or one with a special feature such as a fireplace or attached bathroom, usually used by the head or heads of the household. |
| master builder |
a skilled building contractor or architect, often the supervisor of construction operations and crew. |
| master class |
a small class for very advanced students, esp. a class in musical performance taught by a master musician. |
| master hand |
an expert. [2 definitions] |
| master key |
a key that will open all the locks in a given set, though the keys to these locks are not alike. |
| master mechanic |
a highly skilled mechanic, esp. one who supervises other mechanics. |
| Master of Arts |
a graduate degree, below that of doctor, that is given by a college or university to a person who has completed a prescribed course of graduate study in the humanities or social sciences; master's degree. (abbr.: M.A.) |
| master of ceremonies |
one who hosts a formal event or entertainment, usu. making speeches or announcing guests; emcee. |
| Master of Science |
a master's degree awarded usu. in science, technology, or mathematics. (abbr.: M.S.) |
| master sergeant |
in the U.S. military, a noncommissioned officer of high rank, second only to the rank of sergeant major. |
| master-at-arms |
in the U.S. Navy, a petty officer whose duty is to keep order and maintain discipline on board a ship or at a shore station. |
| masterstroke |
an extremely clever or skillful action or accomplishment. |
| old master |
any of the great European painters of earlier periods, esp. between the fifteenth and eighteenth centuries. [2 definitions] |
| past master |
a person who has a great deal of skill, expertise, or experience at some craft, art, or the like. |