A person or organisation in an intermediate position (in a transaction, agreement, supply chain etc.)
One or several stages of an event which occurs after the start and before the end.
An agent acting as a mediator between sides to facilitate agreement or cooperation.
Intermediate.
The possessor of a master's degree.
Master; sir: a title used in the Middle Ages, given to a person in authority, or to one having a licence from a university to teach philosophy and the liberal arts.