grinder
n 1: a large sandwich made of a long crusty roll split lengthwise
and filled with meats and cheese (and tomato and onion
and lettuce and condiments); different names are used in
different sections of the United States [syn: {bomber},
{hero}, {hero sandwich}, {hoagie}, {hoagy}, {Cuban
sandwich}, {Italian sandwich}, {poor boy}, {sub}, {submarine},
{submarine sandwich}, {torpedo}, {wedge}, {zep}]
2: grinding tooth with a broad crown; located behind the
premolars [syn: {molar}]
3: a machine that processes materials by grinding or crushing
[syn: {mill}]
4: a machine that tools or polishes metal