forefence
/ˈfɒrˌfens/Definitions
1. noun
A fence or other barrier placed at the front of a field, area, or property, especially to mark the boundary or to keep out animals.
“The forefence of the farm was damaged during the storm.”
2. verb
To place or put a fence or other barrier at the front of a field, area, or property.
“The farmer forefenced the entire area to keep the cattle from escaping.”