1) Cattle fold 
A bawn is the defensive wall surrounding an Irish tower house. It is the anglicised version of the Irish word bábhún (sometimes spelt badhún), possibly meaning `cattle-stronghold` or `cattle-enclosure`. The Irish word for `cow` is bó and its plural is ba. The Irish word for `stronghold, enclosure` is dún, whose possessive case is dhú...
• (n.) A large house. • (n.) An inclosure with mud or stone walls, for keeping cattle; a fortified inclosure.
bailey or ward. A defended courtyard of a castle
Bawn (ban) noun [ Ir. & Gael. babhun inclosure, bulwark.] 1. An inclosure with mud or stone walls, for keeping cattle; a fortified inclosure. [ Obsolete] Spenser. 2. A large house. [ Obsolete] Swift.