How do you say grandfather in bengali?

There are two common ways to say grandfather in Bengali, depending on the relationship:

* Dada (দাদা) - This is the most common and general term for grandfather.

* Nanak (নানা) - This is used specifically for the father's father (i.e., paternal grandfather).

Therefore, if you are referring to your father's father, you would use "Nanak". If you are referring to your mother's father, you would use "Dada".