lingua franca

a common language used by speakers of different languages; "Koine is a dialect of ancient Greek that was the lingua franca of the empire of Alexander the Great and was widely spoken throughout the eastern Mediterranean area in Roman times"

हिन्दी राष्ट्रभाषा, राजभाषा, सम्पर्क भाषा, जनभाषा के सोपानों को पार कर विश्वभाषा बनने की ओर अग्रसर है।

Koine is a dialect of ancient Greek that was the lingua franca of the empire of Alexander the Great and was widely spoken throughout the eastern Mediterranean area in Roman times