Grinder

n.	1.	One who, or that which, grinds.
	2.	One of the double teeth, used to grind or masticate the food; a molar.
	3.	(Zool.) The restless flycatcher (Seisura inquieta) of Australia; - called also restless thrush and volatile thrush. It makes a noise like a scissors grinder, to which the name alludes.
	4.	A submarine sandwich. Grinder's asthma (Med.) a lung disease produced by the mechanical irritation of the particles of steel and stone given off in the operation of grinding.

Noun	1.	grinder - 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 Synonyms: hero sandwich, hoagie, hoagy, Italian sandwich, poor boy, sub, Cuban sandwich, submarine sandwich, zep, torpedo, wedge, submarine, bomber, hero
	2.	grinder - grinding tooth with a broad crown; located behind the premolars Synonyms: molar
	3.	grinder - machine that processes materials by grinding or crushing Synonyms: mill
	4.	grinder - a machine tool that polishes metal

BLT, Dagwood sandwich, Sloppy Joe, Swiss cheese sandwich, baby tooth, bacon-lettuce-tomato sandwich, bicuspid, bucktooth, canape, canine, cheese grater, cheeseburger, comminutor, corned beef sandwich, crown, crusher, cuspid, cutter, deciduous tooth, dent, denticle, denticulation, dentil, dentition, dogtooth, double-decker sandwich, egg salad sandwich, eyetooth, fang, fore tooth, gagtooth, gang tooth, gold tooth, granulator, grater, grilled cheese sandwich, ham sandwich, hamburger, hoagy, hot dog, incisor, kominuter, levigator, masher, milk tooth, mill, millstone, molar, mortar and pestle, nutmeg grater, pastrami sandwich, peg, permanent tooth, pestle, pivot tooth, poor boy, premolar, pulverizer, quern, quernstone, rock crusher, roller, sandwich, scrivello, shredder, snag, snaggletooth, steamroller, submarine sandwich, tooth, triturator, tuna salad sandwich, tunaburger, tush, tusk, wisdom tooth