A "bowline" is used to __________.

A bowline is a type of knot specifically designed to create a fixed loop at the end of a line, which is often referred to as an "eye." This loop is secure and doesn't slip under load, making it an ideal choice for various marine applications, including mooring or towing. The fixed eye created by a bowline does not require constant adjustment, allowing for stability in the line's operation.

While other knots might serve different purposes, the bowline's unique design enables it to maintain its integrity under stress, making it preferable in situations where a reliable loop is necessary. This distinguishes it from knots that may join lines of equal size, act as stoppers, or prevent fraying, which do not provide the same fixed-loop function that the bowline does.