From WordNet (r) 3.0 (2006):
cop
n 1: uncomplimentary terms for a policeman [syn: bull, cop,
copper, fuzz, pig]
v 1: take by theft; "Someone snitched my wallet!" [syn: hook,
snitch, thieve, cop, knock off, glom]
2: take into custody; "the police nabbed the suspected
criminals" [syn: collar, nail, apprehend, arrest,
pick up, nab, cop]