- a county in the N Republic of Ireland. 1,865 sq. mi. (4,830 sq. km). County seat: Lifford.
- a plain or herringbone tweed with colored slubs.
- 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)
