Synonyms for Cop (same or very similar meaning)
WordNet sense 1 (uncomplimentary terms for a policeman):
bull, copper, fuzz, pigWordNet sense 2 (take by theft):
hook, snitch, thieve, glom, knock offWordNet sense 3 (take into custody):
apprehend, arrest, collar, nab, nail, pick upFrom the ODE community, based on WordNetadd/edit