Utility

n.
  1. The quality or state of being useful; usefulness; production of good; profitableness to some valuable end; as, the utility of manure upon land; the utility of the sciences; the utility of medicines.
  2. (Polit. Econ.) Adaptation to satisfy the desires or wants; intrinsic value. See Note under Value, 2.
  3. Happiness; the greatest good, or happiness, of the greatest number, -- the foundation of utilitarianism.