Home Run is one of many baseball terms that have transitioned into the everyday vocabulary. Abbreviated HR, a home run is a score recorded when the batter is able to touch the bases and reach the home base when the ball is hit. It is scored in favor of the defensive team in the absence of any errors. A hit is credited to the batter when an HR is scored. Modern rules in baseball consider an automatic home run once a ball is hit over the outfield fence. The ball shouldn’t touch the ground and should be between the foul poles.