Formal:
* Namaste: This is the most common and polite greeting. It literally means "I bow to you" and is used in formal settings.
* Shubh prabhat: This means "good morning".
* Shubh ratri: This means "good night".
Informal:
* Hello: This is the most common way to say "hi" in Hindi, especially among younger people and in casual settings.
* Aap kaise ho?: This means "How are you?".
* Kya haal hai?: This is another way to say "How are you?".
You can also use these informal greetings:
* Sup: This is a slang word that means "What's up?".
* Yo: This is a casual greeting.
It's important to note that the best way to say "hi" in Hindi depends on the situation. If you're unsure, it's always best to err on the side of formality.