(used with a plural verb). Also called the Indies. an archipelago in the N Atlantic between North and South America, comprising the Greater Antilles, the Lesser Antilles, and the Bahamas.
(used with a singular verb) Federation of, Also called West Indies Federation. a former federation (1958–62) of the British islands in the Caribbean, comprising Barbados, Jamaica, Trinidad, Tobago, and the Windward and Leeward island colonies.
British Dictionary definitions for federation west indies
noun (functioning as singular or pl)
an archipelago off Central America, extending over 2400 km (1500 miles) in an arc from the peninsula of Florida to Venezuela, separating the Caribbean Sea from the Atlantic Ocean: consists of the Greater Antilles, the Lesser Antilles, and the Bahamas; largest island is Cuba. Area: over 235 000 sq km (91 000 sq miles) Also called the Caribbean