Informal:
* பிறகு சந்திப்போம் (Pirāku santhipom): This literally translates to "We will meet later." It's a common and informal way to say goodbye.
* பிறகு பார்க்கலாம் (Pirāku pākkaalām): This translates to "We can see each other later" or "We will see each other later." It's another casual way to say goodbye.
* பிறகு (Pirāku): This simply means "later" and can be used as a short and informal goodbye.
Formal:
* நீங்க போறீங்கன்னு சொல்லுங்க (Ninga poringaannu sollunga): This literally means "Please tell me when you are going." It's a polite way to say goodbye and inquire when you'll see them again.
* மறுபடியும் சந்திப்போம் (Marupadiyum santhipom): This means "We will meet again." It's a formal way to say goodbye, especially if you're unsure when you'll see them again.
Other options:
* சீக்கிரம் சந்திப்போம் (Sikkaaram santhipom): This means "We will see each other soon."
* நல்லா இருங்க (Nallā iruṅga): This means "Take care" and can be used as a polite goodbye.
The best option for you will depend on your relationship with the person you're saying goodbye to and the context of the situation.