Formal:
* சத்தம் போடாதே (Chattam podadhe): This is the most literal translation, meaning "don't make noise."
* நிசப்தமா இரு (Nisapthama iru): This means "be silent," and is a more formal way to say be quiet.
Informal:
* அமைதியா இரு (Amaithiyaa iru): This means "be quiet," and is more casual.
* சும்மா இரு (Chummaa iru): This means "be quiet," and is very casual, often used with friends or family.
Other options:
* சத்தம் வேண்டாம் (Chattam vendam): This means "no noise," and is a polite way to ask someone to be quiet.
* குறைஞ்சு பேசு (Kuraiynju pesu): This means "speak less," and is a way to ask someone to be quieter without directly telling them to be quiet.
The best way to choose the right phrase depends on who you are speaking to and the situation.