ROBBER

n. thief, pickpocket, shoplifter, burglar, bandit, housebreaker, sneak-thief, cat burglar, safe-breaker, highwayman, gentleman of the road, brigand, pirate, freebooter, buccaneer, privateer, corsair, Colloq mugger, hold-up man, Slang cracksman, rip-off artist, safe-cracker, safe-blower, Chiefly US stick-up man, US second-story or second-storey man The police were making every effort to catch the robbers