The term 'BOWLER's target' refers to the pins that are set up at the end of a bowling lane. The pins are arranged in a triangular formation and the goal is to knock them all down with a single roll of the ball. The three letter solution for this term is PIN, which stands for 'PIN'. The four letter solution is PINS, which stands for 'pins'. The six letter solution is ONEPIN, which stands for 'one PIN'. The last six letter solution is TENPIN, which stands for 'ten PIN'. Ten PIN bowling is the most popular form of bowling, where ten pins are set up in a triangular formation at the end of the lane.