a lingua franca

a language that is used for communication between people whose main languages are different (often + of ) English is the undisputed lingua franca of the business world.

Common Names:

Name	Pronounced	Usage
Kazia	KAH-zhah	Polish
Maureen	maw-REEN, MAWR-een	Irish, English
SreČKo	-	Slovene
Kibwe	-	Eastern African, Swahili
Rachyl	RAY-chəl	English (Rare)
Dorottya	-	Hungarian