noun (n)

• the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose(noun.act)

  Example:
  Could not walk without assistance.
  

  Synonym:
  aid, assist, help
  

  source: wordnet30
• a resource(noun.attribute)

  Synonym:
  aid, help
  

  source: wordnet30
• The act of assisting; help; aid; furtherance; succor; support.(noun)

  source: webster1913