What is a loop that can be used to attach the end of the rope to a fixed object called?

The loop used to attach the end of a rope to a fixed object is called a figure eight on a bight. This knot creates a secure loop and is particularly effective because it can bear weight without slipping, making it reliable for use in various situations, including rescue operations and climbing. The figure eight knot is relatively simple to inspect and untie, which enhances its safety features, especially in emergency scenarios where time is of the essence.

While other knots such as the bowline, half hitch, and clove hitch serve different purposes, they don't create a fixed loop in the same secure manner as the figure eight on a bight. The bowline forms a fixed loop at the end of the rope, which is useful but can potentially slip under heavy load if not secured properly. Half hitches are often used to secure something but typically do not create a loop that is suitable for attaching to a fixed point reliably. The clove hitch is useful for securing a rope to an object but can slip when not under load, making it less suitable for scenarios where a strong, stable connection is needed.