Here are some other words for bathroom in Farsi, depending on the context:
* توالت (toalet): This is a more formal word for bathroom.
* حمام (hamaam): This word literally means "bath," but it can also be used to refer to a bathroom.
* سرویس بهداشتی (servis behdashti): This literally means "hygiene service" and is a common term for a public restroom.
The best word to use will depend on the situation. For example, if you are asking someone where the bathroom is, it's best to use دستشویی. However, if you are talking about a bathroom in a hotel, توالت would be more appropriate.