a hammer used for pounding; a machine tool that pounds; a hammer-shaped tool used to hit something, such as a gavel; a rapper; a door knocker; a piano or dulcimer hammer
to strike with a hammer; to hammer; to shape or forge with a hammer; to emphasise individual elements such as words or notes; to repeat insistently; to trouble; to bother; to worry
multi-tail whip, comprising leather or whipcord thongs fixed on a handle, to dust off or to administer a beating; mechanical hammer on a motor-driven cogwheel, as used to beat metal