Who was the first person to shout out word?

It's impossible to know who the first person to shout out a word was. Here's why:

* Language developed over time: Language didn't appear overnight. It evolved gradually over thousands of years, starting with basic sounds and gestures and becoming more complex.

* No written records: There is no way to know what sounds early humans made, as there are no written records from that time period.

* Speculation only: Any answer would be pure speculation.

While we can't pinpoint the first word ever shouted, we can learn about the fascinating journey of language development through archaeology, linguistics, and anthropology.