Bai″ley (�), n. [The same word as bail line of palisades; cf. LL. ballium bailey, OF. bail, baille, a palisade, baillier to inclose, shut.] 1. The outer wall of a feudal castle.
2. The space immediately within the outer wall of a castle or fortress.
3. A prison or court of justice; — used in certain proper names; as, the Old Bailey in London; the New Bailey in Manchester. Oxf. Gloss.