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Blocking (stage): In theatre, blocking is the precise staging of actors to facilitate the performance of a play, ballet, film or opera. Historically, the expectations of staging/blocking have changed substantially over time in Western theater.
Blocking (statistics): In the statistical theory of the design of experiments, blocking is the arranging of experimental units in groups that are similar to one another.
Blocking (martial arts): In martial arts, blocking is the act of stopping or deflecting an opponent's attack for the purpose of preventing injurious contact with the body. A block usually consists of placing a limb across the line of the attack.
Blocking the plate: In baseball, blocking the plate is a technique performed by a catcher to prevent a runner from scoring. The act of blocking the plate accounted for most of the physical contact in Major League Baseball prior to the 2014 season, when it was outlawed except when the catcher already has possession of the ball.