urinate (formal word)
Verbs unless otherwise noted.
Children's words (kids only!):
go pee pee, make pee pee, make water, make wee wee, go number 1, go potty, go
All I want for Christmas is a doll that can go pee pee!
Polite terms (euphemisms):
go to the bathroom, go to the restroom, powder ones nose (women), visit the little girls/little boys room, relieve oneself, Nature calls! (exclamation), tinkle, piddle, spend a penny, make a pit stop
While Trixie was powdering her nose on the camping trip, she was eaten by a bear.
I'd love to see more pictures of your cat, but nature calls!
piss, take a piss, take a leak (men), take a whizz (men), bleed the lizard (men), drain the snake (men)
To demonstrate his love, Frank spelled out the name of his girlfriend in the snow while taking a whizz.