utility

The state or condition of being useful; usefulness.

Something that is useful.

(economics) The ability of a commodity to satisfy needs or wants; the satisfaction experienced by the consumer of that commodity.

(philosophy) Well-being, satisfaction, pleasure, or happiness.

(business, finance) A natural or legal areal monopoly distributer of a commodity (less often a service) delivered in continuous flows to multiple consumers from a common physical, infrastructural network, such as an electric company or water company; or, the securities of such a provider.

(computing) A software program designed to perform a single task or a small range of tasks, often to help manage and tune computer hardware, an operating system or application software.

(sports) The ability to play multiple positions.