Baseball Definitions Appeal Assist Ball Base Base coach Base hit Base line Base on balls Base runner Baseball Baseball Bat Baseball Fielder Batter’s box Batter’s circle Battery Batting helmets Batting order Bench Bunts Called game Catch Catcher’s box Catcher’s interference Chin music Coach’s box Complete game Curveball Cut-off Dead ball Defense Designated hitter Double Double play Doubleheader Earned run Error Extra innings Fair ball Fair territory Fastball Field Fielder’s choice Fly out Force play Forfeit Forkball Foul ball Foul lines Foul territory Foul tip Gloves Going yard Ground out Ground rule double Hit Home plate Home run Illegal pitch Infield Innings Knuckleball League Line drive Live ball Losing pitcher Mitt Nine-inning win No hitter Obstruction Offense On-deck circle Out Outfield Outfielder Overslide Passed ball Perfect game Pinch runner Pitch Pitcher’s mound Pitcher’s rubber Pivot foot Players Putout Relief pitcher Run down Runs batted in Sacrifice bunt Sacrifice fly Safe Set position Shutout Single Sinker Slider Squeeze play Starting pitcher Stolen base Strike Strike zone Baseball Articles What Is WAR In Baseball? 60-Yard Dash In Baseball: What’s A Good Time? What Is A Walk-Off Home Run? Why Does Baseball Have Rain Delays? Why Do Baseball Pitchers Rub The Ball? What Is ERA In Baseball? What Is A Balk In Baseball What Is A Slugging Percentage In Baseball? What Is WHIP In Baseball? What is a Foul Ball in Baseball? How Long Does a Baseball Game Usually Last? How Many Players are on a Baseball Team? What is the Infield Fly Rule in Baseball? What is a Save in Baseball? What is a Bullpen in Baseball? How Many Stitches on a Baseball? How Many Baseballs Are Used In A Game? Who Invented Baseball? Rules of Baseball