What was the first word in world?

There's no way to know for sure what the first word in the world was! Here's why:

* Language Evolved: Human language didn't appear suddenly. It evolved over thousands of years, starting with simple sounds and gestures and gradually becoming more complex.

* No Written Records: The earliest languages were spoken, and there's no way to know exactly what those sounds were.

* Many Theories: There are many theories about the origins of language, but none can definitively prove what the first word was.

So while it's a fun question to think about, there's no scientific answer!