The term "fence" has several meanings, depending on its context.
1) In a general sense, a fence is a barrier or obstacle designed to prevent people or animals from crossing a boundary. It can be made of various materials such as wood, metal, vinyl, or wire and can serve different purposes like marking property lines, keeping pets in the yard, or protecting wildlife habitats.
2) In sports terminology, fence refers to one of the three horizontal barriers that make up a jumps course in equestrian events such as show jumping or eventing. The goal is for horse and rider to clear each obstacle without knocking it down.
3) Fence can also refer to an enclosure, especially around a garden or yard, designed to keep out intruders or unwanted animals. It may be made of wood, metal, vinyl, or other materials.