It's important to note that:
* "Bhabhi" is a respectful term used for a brother's wife. It's considered polite to use this term even if you are younger than your brother's wife.
* There are other ways to address your brother's wife depending on your relationship with her. For example, you could call her by her name, or use a more casual term like "did". However, "bhabhi" is the most common and respectful way to address her.