piddleinformal
weeUKinformal
 SMART Vocabulary: related words and phrases 
 Animal physiology: urine & urinating 
accident
bathroom
bodily function
cock a leg
excrete
excretion
go to the bathroomidiom
leak
pass
pass wateridiom
piddle
piss
short
slash
tinkle
uric
water
wazz
wee
wet your pantsidiom
urine | American Dictionary
urine
noun[ U ]
us/ˈjʊər·ɪn/
biology
liquid waste excreted by people and animals