(aerospace) The total mass of the burnt fuel etc. ejected from a rocket to provide thrust.

Someone who acts as a host at a formal event. / Someone who conducts a programme of varied entertainment, for example by introducing performers to the audience. / (rap music) A rapper.

plural of master

A master's degree.

Third-person singular simple present indicative form of master

A degree that usually requires 2-3 years beyond a Bachelor of Science and emphasizes science and scientific applications. The degree is less advanced than a Doctorate degree.

(physics) The increased mass of an object moving at relativistic speed relative to an observer.

(physics) The mass of a body when it is not moving relative to an observer.

A master's degree. / A person holding a master's degree, as a title.

A surname originating as an occupation