noun (n)

• an event that repeats(noun.event)

  Synonym:
  repeat
  

  source: wordnet30
• the act of doing or performing again(noun.act)

  Synonym:
  repeating
  

  source: wordnet30
• the repeated use of the same word or word pattern as a rhetorical device(noun.communication)

  source: wordnet30
• The act of repeating; a doing or saying again; iteration.(noun)

  source: webster1913