What is Telugu word for soap nut?

Here's a breakdown:

* సబ్బు (sabbu) - soap

* గింజ (ginja) - seed, nut

So, సబ్బు గింజ (sabbu ginja) literally means "soap seed" or "soap nut."

It's also sometimes referred to as రేగు గింజ (regu ginja), which means "soapberry seed."