LINGUA FRANCA

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LINGUA FRANCA. [The plural is usually lingua francas, but sometimes Italian lingue franche and Latin linguae francae.]
1. Originally, a name for the mixed language, based on ITALIAN and Occitan (Southern French), used for trading and military purposes in the Mediterranean in the Middle Ages. See SABIR.

2. By extension, a semi-technical term for any additional (often compromise) language adopted by speakers of different languages, as a common medium of communication for any purposes and at any level. A lingua franca may be either a fullyfledged language (LATIN in the Roman Empire, Hausa at the present time in West Africa), or a PIDGIN or CREOLE (TOK PISIN in Papua New Guinea, KRIO in Sierra Leone). A language may become somewhat reduced if it is widespread as a lingua franca (SWAHILI in East Africa). FRENCH served widely in Europe as the lingua franca of diplomacy in the 18–19c, and English now serves as a lingua franca in many countries with linguistically diverse populations (such as India and Nigeria) and for many purposes (as with the restricted variety SEASPEAK, used by the world's merchant marine). See BUSINESS ENGLISH, LINGO, LINK LANGUAGE, POLARI.

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