Formal:
* भाऊ (Bhau): This is the most common and formal term for "brother," which applies to both older and younger brothers.
* वडिलभाऊ (Vadilbhau): This literally means "father's brother," specifically indicating an older brother.
* मोठा भाऊ (Motha Bhau): This means "big brother" and is a more direct way to say "older brother."
Informal:
* बॉय (Boy): This is a casual and informal way to refer to a brother, often used between siblings.
* अण्णा (Anna): This is a term of endearment for an older brother, often used by younger siblings.
The best translation will depend on the specific situation. For instance, you might use "Bhau" when talking to someone respectfully, but "Boy" or "Anna" when talking to your own sibling.