Definitions for "Master shot"
Keywords:  scene, shot, dramatic, filmic, closeups
a continuous shot or long take that shows the main action or setting of an entire scene (most scenes are shot with one or two master angles and then broken up into a series of smaller or tighter angles (such as one-shots, two-shots, and reaction shots)); a master refers to a positive print made especially for duplication purposes
a shot which covers an entire piece of dramatic action (usually a long shot, or wide shot).
The shot that serves as the basic scene, and into which all cutaways and closeups will be inserted during editing. A master shot is often a wide shot showing all characters and action in the scene.