Enclose, with 'OFF' is a term that can be used to describe two different crossword solutions. The first solution is ROPE, which is a four letter word for a long, thick string made of twisted fibers. The second solution is CORDON, which is a six letter word for a line of people, animals, or things arranged in a circle or around an area to keep others out. Both words are used to describe the act of enclosing something with a barrier or boundary.