noun (n)

• a close observer; someone who looks at something (such as an exhibition of some kind)(noun.person)

  Example:
  The spectators applauded the performance.
  

  Synonym:
  looker, viewer, watcher, witness
  

  source: wordnet30
• a woman's pump with medium heel; usually in contrasting colors for toe and heel(noun.artifact)

  Synonym:
  spectator pump
  

  source: wordnet30
• One who on; one who sees or beholds; a beholder; one who is personally present at, and sees, any exhibition; as, the spectators at a show.(noun)

  source: webster1913