truncheon

a heavy rigid stick used as a weapon or for punishment police officers were forced to use their truncheons on the rioters Synonyms bastinado (or bastinade), bat, baton, billy, billy club, bludgeon, cane, cudgel, nightstick, rod, rung [Scottish], sap, shillelagh (also shillalah), staff, club, waddy [Australian]Related Words blackjack, knobkerrie, mace; birch, crabstick, hickory, rattan, stave, switch; beetle, gavel, hammer, mallet, maul, sledgehammer; crook, crosier (or crozier), walking stick, whangee