1. 
2. 
[syn: make, urinate, piddle, puddle, micturate, piss, pee, pee-pee, make water, relieve oneself, take a leak, spend a penny, wee, wee-wee, pass water]
The Collaborative International Dictionary of English v.0.48:
Urinate \U"ri*nate\, v. i. [LL. urinare.]
   To discharge urine; to make water.
   [1913 Webster]
WordNet (r) 3.0 (2006):
urinate
    v 1: pass after the manner of urine; "The sick men urinated
         blood"
    2: eliminate urine; "Again, the cat had made on the expensive
       rug" [syn: make, urinate, piddle, puddle,
       micturate, piss, pee, pee-pee, make water, relieve
       oneself, take a leak, spend a penny, wee, wee-wee,
       pass water]