noun
- a county in the N Republic of Ireland. 1865 sq. mi. (4830 sq. km). County seat: Lifford.
- Also called Donegal tweed. a plain or herringbone tweed with colored slubs.
noun
- a county in NW Republic of Ireland, on the Atlantic: mountainous, with a rugged coastline and many offshore islands. County town: Lifford. Pop: 137 575 (2002). Area: 4830 sq km (1865 sq miles)
county in northern Ireland, from Irish Dun na nGall “fort of the foreigners” (in this case, the Danes); also see Galloway.