What is the other name of forestin Tamil?

There is no direct translation of "forest" in Tamil that is commonly used as a substitute for the word itself.

However, here are some options:

* காடு (Kaadu): This is the most common word for "forest" in Tamil.

* வனம் (Vanam): This word also means "forest" but is slightly more literary and formal.

* அடர்ந்த காடு (Adartha Kaadu): This means "dense forest."

* மலைக் காடு (Malai Kaadu): This means "mountain forest."

The best option will depend on the specific context of your use.