noun (n)

• the state of being urgent; an earnest and insistent necessity(noun.state)

  source: wordnet30
• pressing importance requiring speedy action(noun.attribute)

  Example:
  The urgency of his need.
  

  source: wordnet30
• an urgent situation calling for prompt action(noun.state)

  Example:
  They departed hurriedly because of some great urgency in their affairs.
  

  source: wordnet30
• insistent solicitation and entreaty(noun.communication)

  Synonym:
  importunity, urging
  

  source: wordnet30
• The quality or condition of being urgent; insistence; pressure; as, the urgency of a demand or an occasion.(noun)

  source: webster1913