What is definition of subbing?

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Subbing, short for "substitution," refers to the process of replacing one player with another during a sports game or match. This can be done for various reasons, such as to give a tired or injured player a break, to change the dynamics of the game by bringing in a player with a different skill set, or to give a younger or less experienced player some game time. In some sports, such as basketball, there are limitations to how many times a team can make substitutions during a game. Subbing is a common practice in many team sports and plays a crucial role in managing player performance and the outcome of a game.