BAIL (6)

Bail, n. [[OF. bail, baille. See Bailey.]] 1. 1. (Usually pl.) A line of palisades serving as an exterior defense. [Written also bayle.]
2. 2. The outer wall of a feudal castle. Hence: The space inclosed by it; the outer court. Holinshed.
3. 3. A certain limit within a forest.
4. 4. A division for the stalls of an open stable.
5. 5. (Cricket) The top or cross piece (or either of the two cross pieces) of the wicket.