noun (n)

• small round bread leavened with baking-powder or soda(noun.food)

  source: wordnet30
• any of various small flat sweet cakes (`biscuit' is the British term)(noun.food)

  Synonym:
  cookie, cooky
  

  source: wordnet30
• A kind of unraised bread, of many varieties, plain, sweet, or fancy, formed into flat cakes, and bakes hard; as, ship biscuit.(noun)

  source: webster1913