Formal:
* Yá'át'ééh: This is the most common and formal greeting, meaning "Hello" or "Good day." It's appropriate for most situations, especially when addressing elders or someone you don't know well.
Informal:
* Yaa'at'ééh: This is a more casual version of the formal greeting.
* Yaa'at'ééh shimá: This means "Hello, my friend" and is a friendly greeting used with someone you know well.
Other options:
* Hózhóón: This means "Peace" or "Well-being," and is a good way to wish someone well.
* A'oo'óó! This is a very casual greeting, often used with friends and family.
It's important to note that Navajo is a complex language with many nuances. The best way to learn how to use these greetings correctly is to practice with a fluent speaker.