Universal Language

Universal language may refer to a hypothetical or historical language spoken and understood by all or most of the world's population. In some contexts, it refers to a means of communication said to be understood by all living things, beings, and objects alike. It may be the idea of an international auxiliary language for communication between groups speaking different primary languages. In other conceptions, it may be the primary language of all speakers, or the only existing language. Some mythological or religious traditions state that there was once a single universal language among all people, or shared by humans and supernatural beings, however, this is not supported by historical evidence.

In other traditions, there is less interest in or a general deflection of the question. For example in Islam the Arabic language is the language of the Qur'an, and so universal for Muslims. The written Classical Chinese language was and is still read widely but pronounced somewhat differently by readers in different areas of China, in Vietnam, Korea and Japan for centuries; it was a de facto universal literary language for a broad-based culture. In something of the same way Sanskrit in Nepal was a literary language for many for whom it was not a mother tongue.

Comparably, the Latin language (qua Medieval Latin) was in effect a universal language of literati in the Middle Ages, and the language of the Vulgate Bible, in the area of Catholicism which covered most of Western Europe and parts of Northern and Central Europe also.

In a more practical fashion, trade languages, as ancient Koine Greek, may be seen as a kind of real universal language, that was used for commerce.

In historical linguistics, monogenesis refers to the idea that all spoken human languages are descended from a single ancestral language spoken many thousands of years ago.