Formal:
* வணக்கம் (Vanakkam) - This is the most common and polite greeting, equivalent to "hello" or "good morning/afternoon/evening."
* நமஸ்தே (Namastē) - This is another formal greeting, often used in religious settings.
Informal:
* சல்யூட் (Sallewt) - This is a more casual greeting, similar to "hey" or "hi."
* எப்படி இருக்கீங்க? (Eppati irukkiṅka?) - This literally translates to "How are you?" and can be used as a greeting, especially among friends and family.
Other options:
* சாரி (Sāri) - This is a very informal greeting, similar to "yo" or "hey."
* ஏய் (Ey) - This is an extremely informal and casual greeting, often used among close friends.
The best choice will depend on the situation and your relationship with the person you're greeting.