noun (n)

• 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(noun.food)

  Synonym:
  bomber, cuban sandwich, hero, hero sandwich, hoagie, hoagy, italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep
  

  source: wordnet30
• grinding tooth with a broad crown; located behind the premolars(noun.body)

  Synonym:
  molar
  

  source: wordnet30
• machinery that processes materials by grinding or crushing(noun.artifact)

  Synonym:
  mill, milling machinery
  

  source: wordnet30
• a machine tool that polishes metal(noun.artifact)

  source: wordnet30
• One who, or that which, grinds.(noun)

  source: webster1913