Bowling is a popular sport that involves throwing a ball down a lane in an attempt to knock down pins. The term 'bowling target' refers to the pins that are set up at the end of the lane. The most common type of bowling target is TENPIN, which consists of ten pins arranged in a triangular formation. Pins is the four-letter word for these targets, while duckpin is a variation of TENPIN with smaller pins and a different arrangement. PIN is the three-letter word for a single bowling target. TENPINS is the seven-letter word for the entire set of TENPINS.