Is their terms for the type of shot depending on if the characters in the shot, are facing diagonal, sideways, or dead on towards the camera?
Oh and something very important to help reduce communication with the talent - their left is camera right and their right is camera left.
Well so far in my experience the DP does need to know because there was a couple of miscommunications on a shoot, of a project my friend asked me to co-direct. I told the actor to face the camera. He did but since he could not look at the camera, his facing was still a bit diagonal, then I wanted. I had to tell the DP to move in front. This happened a few times actually so I figure I might as well just write it down, instead of correcting him. This way he knows going in, and is prepared.
Why not just draw some simple boards if you're having that much trouble communicating with words? Boards really quickly clears up any confusion.
Also, in regards to your location point - that's one of the tricks about being a Director. The compromises you make - do we have barrel distortion or do we change the shot list? Do we change this shot slightly and add a shot to cover the action when he walks out of frame?