Formal:
* विदाई (vidaai) - This is a very formal way to say goodbye, often used in speeches or written communication.
* अलविदा (alvida) - This is a more formal goodbye, similar to "farewell" in English.
Informal:
* नमस्ते (namaste) - This is a polite way to say goodbye, similar to "hello" in English. It is used in both formal and informal situations.
* शुभकामनाएं (shubhkamnaye) - This means "best wishes" and is a common way to say goodbye to someone you know well.
* खुश रहें (khush rahen) - This means "stay happy" and is a friendly way to say goodbye.
* चलो (chalo) - This means "let's go" and is a casual way to say goodbye, often used among friends.
* जय हिंद (jai hind) - This means "victory to India" and is a patriotic way to say goodbye.
The best way to say goodbye in Hindi is to choose a phrase that is appropriate for the situation and your relationship with the person you are saying goodbye to.
Here are some examples of how to use these phrases in a sentence:
* Formal: *विदाई, मैं आपसे जल्द ही मिलूंगा।* (vidaai, main aapse jaldi hi milunga) - Farewell, I will see you soon.
* Informal: *नमस्ते, आपका दिन शुभ हो।* (namaste, aapka din shubh ho) - Goodbye, have a good day.
* Casual: *चलो, फिर मिलते हैं।* (chalo, phir milte hain) - Let's go, see you later.