quality:correction, structural:summarization, structural:reformatting
A lingua franca, also known as a bridge language, common language, trade language, auxiliary language, or link language, is a language systematically used to make communication possible between groups of people who do not share a native language or dialect, particularly when it is a third language that is distinct from both of the speakers' native languages. Linguae francae have developed around the world throughout human history, sometimes for commercial reasons, but also for cultural, religious, diplomatic and administrative convenience, and as a means of exchanging information between scientists and other scholars of different nationalities. The term is taken from the medieval Mediterranean Lingua Franca, a Romance-based pidgin language used especially by traders in the Mediterranean Basin from the 11th to the 19th centuries. A world language—a language spoken internationally and by many people—is a language that may function as a global lingua franca.