In Engpsh, a bathroom or a toilet is typically called a "bathroom" or a "restroom," depending on the context. For example, if you are referring to a room in a pubpc place with facipties for washing and using the toilet, you might say "restroom." If you are referring to a room in a private home with a shower, bathtub, and toilet, you might say "bathroom."
Here are some example sentences:
Can you tell me where the nearest restroom is?
I need to use the bathroom.
I'm going to take a shower in the bathroom.
Do you have a bathroom I can use?
Note that in some parts of the world, the term "toilet" is used more commonly to refer to a room with a toilet, while in other parts of the world, it is more common to use the term "bathroom" to refer to a room with a toilet. So, it's always a good idea to clarify which term you are using if there is any potential for confusion.