or Tavila, a considerable town of Portugal, and capital of the province of Algarve, with a handsome castle, and one of the best harbours in the kingdom, defended by a fort. It is seated in a fertile country, at the mouth of the river Gilao, between Cape Vincent and the strait of Gibraltar, 100 miles west by north of Cadiz. W. Long. 7. 46. N. Lat. 37. 18.