The Collaborative International Dictionary of English v.0.48:
Basseterre \Basseterre\ prop. n. (Geography) The capital city of St. Kitts and Nevis. Population (2000) = 19,000. [PJC]WordNet (r) 3.0 (2006):
Basseterre n 1: the capital of Saint Kitts and Nevis on the island of Saint Christopher