noun (n)

• skillfulness with the hands(noun.cognition)

  Example:
  He can do any sort of work requiring handiness and dexterity.
  

  source: wordnet30
• the quality of being at hand when needed(noun.attribute)

  Synonym:
  accessibility, availability, availableness
  Antonym:
  inaccessibility, unavailability
  

  source: wordnet30
• The quality or state of being handy.(noun)

  source: webster1913