noun (n)

• a worker who casts molten metal into finished products(noun.person)

  source: wordnet30
• a shaker with a perforated top for sprinkling powdered sugar(noun.artifact)

  Synonym:
  castor
  

  source: wordnet30
• a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable(noun.artifact)

  source: wordnet30
• One who casts; as, caster of stones, etc. ; a caster of cannon; a caster of accounts.(noun)

  source: webster1913