- a seaport in and capital of Northern Ireland, on the E coast.
- the capital of Northern Ireland, a port on Belfast Lough in Belfast district, Co Antrim and Co Down: became the centre of Irish Protestantism and of the linen industry in the 17th century; seat of the Northern Ireland assembly and executive. Pop: 276 459 (2001)
- a district of W Northern Ireland, in Co Antrim and Co Down. Pop: 271 596 (2003 est). Area: 115 sq km (44 sq miles)
