(i) Follow-On: It is given in a test match when batting team cannot score sufficient runs and the lead is more than 200 runs, it may be given follow-on or to bat again. 

(ii) A player from batting fielding side is replaced with a new player. In super substitute this replaced player can bat or field or bowl (with certain conditions). This is also referred to as twelfth man. 

(iii) Ball Tampering : It is the intentional damage to the ball by the fielding players to get undue advantage in the swing of the ball during bowling. 

(iv) Third Umpire or TV Umpire is an off-field umpire who makes the final decision in questions referred to him by the two on-field umpires. Television replays are available to the third umpire to assist him in coming to a decision. An on-field umpire can, at his own discretion, use a radio link to refer any close decision concerning dismissals (catches, run outs or stumping) or boundaries to the third umpire. The official who witnesses the match with high-tech apparatus and responsible for crucial or complicate decisions when in need.