Home run

in baseball, a four-base hit resulting in a run by the batter

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in baseball, a four-base hit with the bases loaded; it always results in four runs scored and four runs batted in, the maximum possible from one hit (or play)

annual home run hitting contest

play where a batter hits a home run without hitting the ball out of the field of play

in baseball, a home run in the final inning that ends the game