Informal:
* Nahin (नहीं): This is the most common and straightforward way to say "no."
* Na (ना): This is a more casual way to say "no," often used with friends and family.
Formal:
* Nahin (नहीं): This is also used in formal situations, but with a slightly more emphatic tone.
* Nahīṅ (नहीं): This is a more literary form of "no," often used in written Hindi.
Other options:
* Mat (मत): This means "don't" and can be used to express "no" in a more emphatic way, especially in commands. For example, "Mat karo" (मत करो) means "Don't do it."
* Nahiṅ (नहीं): This is a more emphatic version of "Nahin" and is often used to express strong disagreement.
The best way to say "no" in Hindi will depend on the specific situation and your relationship with the person you are speaking to.