The Yuman languages are a family of languages spoken by indigenous peoples in the southwestern United States and northwestern Mexico. This is like saying "Indo-European" and expecting one word for "hello." There are many different Yuman languages, each with its own unique vocabulary.
Here are a few examples:
* Kumeyaay: "Haa"
* Havasupai: "Ahaa"
* Quechan: "Mii"
* Mohave: "Ay"
To be more specific, you would need to say which Yuman language you are interested in.