noun (n)

• any of various large ancient Greek coins(noun.possession)

  source: wordnet30
• a circular helping of food (especially a boneless cut of meat)(noun.food)

  Example:
  Medallions of veal.
  

  source: wordnet30
• an emblem indicating that a taxicab is registered(noun.communication)

  source: wordnet30
• an award for winning a championship or commemorating some other event(noun.communication)

  Synonym:
  decoration, laurel wreath, medal, palm, ribbon
  

  source: wordnet30
• A large medal or memorial coin.(noun)

  source: webster1913