noun (n)

• presiding officer of a school(noun.person)

  Synonym:
  headmaster, master
  

  source: wordnet30
• any person (or institution) who acts as an educator(noun.person)

  source: wordnet30
• food fish of warm Caribbean and Atlantic waters(noun.animal)

  Synonym:
  lutjanus apodus
  

  source: wordnet30
• The man who presides over and teaches a school; a male teacher of a school.(noun)

  source: webster1913