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