TNT (trinitrotoluene) is a highly destructive block that, once activated, creates an explosion. TNT is usually recommended as a quick and efficient method for destroying large portions of undesirable blocks or structures. It can also be used as a weapon, but isn't recommended due to its destructive nature and its potential to seriously injure or even kill players if they stray too close to the blast radius. Detonating TNT in water will prevent it from destroying any blocks; however, entities will still be damaged if within the blast radius