How do you say good afternoon in Tamil?

There are a couple of ways to say "good afternoon" in Tamil, depending on the formality of the situation:

Formal:

* நல்ல பிற்பகல் (nalla pirpakal) - This is the most common and polite way to say "good afternoon" in Tamil.

Informal:

* நல்ல பகல் (nalla pakal) - This is a more casual way to say "good afternoon".

Note:

* You can also use "வணக்கம் (vanakkam)" which is a general greeting used throughout the day.

* "நல்ல (nalla)" means "good" and "பிற்பகல் (pirpakal)" or "பகல் (pakal)" means "afternoon".

Example:

* "நல்ல பிற்பகல், சார் (nalla pirpakal, saar)" - "Good afternoon, sir."

* "நல்ல பகல், அம்மா (nalla pakal, amma)" - "Good afternoon, mom."