Right hand (RH): If the Hinges are on the Right and the door opens in, it's a right hand door. You Push the door with your right Hand
Left hand (LH): If the Hinges are on the Left and the door opens in, it's a left hand door. You Push the door with your left hand.
Left hand reverse (LHR): If the hinges are on the left and the door pulls away from you, it's a left hand reverse door. You Pull the door with your left hand.
Right hand reverse (RHR): If the hinges are on the right and
the door pulls away from you, it's a right hand reverse door.
You Pull the door with your right hand.