Smash/Slam (an overhead hit using the user's full power to hit the ball fast)
Volley (when the player hits the ball before it hits the ground; it is a common misconception that it can only be done at the net, as there is a term called the 'baseline volley' where the player hits the ball before it hits the ground at the baseline, rather than at the net)
Half-Volley (a hit right next to the ground where the ball just bounced off of the ground and barely got off of the ground)
Winner (the most common term used on the court; it is a shot where the player hit the ball but the opponent could not get their racquet on the ball)