noun (n)

• a numbered list(noun.communication)

  Synonym:
  numbering
  

  source: wordnet30
• the act of counting; reciting numbers in ascending order(noun.act)

  Synonym:
  count, counting, numeration, reckoning, tally
  

  source: wordnet30
• The act of enumerating, making separate mention, or recounting.(noun)

  source: webster1913