The Collaborative International Dictionary of English v.0.48:
Bissau \Bissau\ prop. n. (Geography) The capital city of Guinea-Bissau. Population (2000) = 200,000. [PJC]WordNet (r) 3.0 (2006):
Bissau n 1: the capital of Guinea-Bissau [syn: Bissau, capital of Guinea-Bissau]