A shot is a camera direction. In the following example, POV (highlighted) means Point of View and it tells the director to use the camera to show the scene from Billy Bob's eyes. BACK TO SCENE returns it to the full scene where we again see Billy Bob:

Other camera shots include INSERT, which is a quick close-up of a detail. For example, a man walks under a hanging sign. The INSERT shot shows the chain holding up the sign pulling loose from the wall. We return to the full scene as the sign starts to fall.

CLOSEUP tells the director to do a headshot where just the heads of one or two characters are in the frame.

A LONG SHOT is when the camera is a good distance away.

We can also indicate SERIES OF SHOTS, which are quick mini scenes such as:

SERIES OF SHOTS

Monsters jump into the back of Billy Bob's fleeing pickup truck

Billy Bob sees them in the rear view mirror and screams

A monster's huge fist breaks through the rear window

Billy Bob opens the door and tumbles down a bank

The pickup truck...