Here are some other options, depending on the context:
* Urine: This is the most formal and scientific term.
* Wee: This is a more informal and child-like term.
* Waterworks: This is a humorous and somewhat childish term.
* Toilet: This is a less direct way to refer to the act of urinating.
It's important to choose the right term depending on the situation and the audience. For example, you wouldn't use the term "pee" in a medical setting, but it would be appropriate to use it with friends or family.