Pee (verb)

1. To pass urine from the body.
2. To urinate.

Origin:

Mid 17th century: probably imitative of the sound of urination.

Examples:

1. He had to pee after drinking too much water.
2. The dog needed to pee after a long walk.
3. She asked to use the restroom to pee.
4. He had to pee in the bushes as there was no restroom in sight.
5. The baby started to cry, indicating that it needed to pee.