a county of SE England, comprising part of the former county of Sussex: mainly low-lying, with the South Downs in the S. Administrative centre: Chichester. Pop: 758 600 (2003 est). Area: 1989 sq km (768 sq miles)
West Sussex in American English
county in SE England, on the English Channel: 767 sq mi (1,987 sq km); pop. 702,000