the service (electric power or water or transportation) provided by a public utility | a person or thing that takes or can take the place of another |
a facility composed of one or more pieces of equipment connected to or part of a structure and designed to provide a service such as heat or electricity or water or sewage disposal | someone who takes the place of another (as when things get dangerous or difficult) |
the quality of being of practical use | an athlete who plays only when a starter on the team is replaced |
(computer science) a program designed for general support of the processes of a computer | |
a company that performs a public service; subject to government regulation | |
(economics) a measure that is to be maximized in any situation involving choice | |