- a seaport in N Spain: resort.
- a city in NW Puerto Rico.
- a tropical American plant, Cattleya skinneri, having cylindrical leaves and yellow-throated, rose-purple flowers.
- a port and resort in N Spain on the Bay of Biscay: former summer residence of the Spanish court. Pop: 181 811 (2003 est)Official name: Donostia-San Sebastián