Formal:
* নমস্কাৰ (Nomoskar): This is the most formal way to say hello, used for elders, strangers, and people in positions of authority.
Informal:
* নমস্তে (Nomoste): This is a more casual greeting, used for friends, family, and acquaintances.
* সুপ্রভাত (Suprabhat): This means "good morning" and is used in the morning.
* সুসন্ধ্যা (Susandhya): This means "good evening" and is used in the evening.
Other options:
* আপুনি কেমন আছেন? (Apuni kemon ashen?): This translates to "How are you?" and can be used as a greeting, especially when you haven't seen someone in a while.
* আপুনি কি কৰি আছিল? (Apuni ki kari ashil?): This means "What have you been doing?" and is also a common greeting.
It's important to note that Assamese pronunciation can be tricky, so it's best to listen to a native speaker to get the correct intonation and pronunciation.