Foul ball
In baseball, a foul ball is any hit ball that goes in foul territory, which is the area of the field not in between the bases (when looking from home plate to the pitcher's mound), without first going beyond the bases nearest to home plate, or being touched by a player, umpire, or an object not part of the ground while on or over fair territory (which is the part of the field that is not foul territory).