1. a company that performs a public service; subject to government regulation
2. the quality of being of practical use
3. the service provided by a utility company;
"the cost of utilities never decreases"
4. (economics) a measure that is to be maximized in any situation involving choice
5. (computer science) a program designed for general support of the processes of a computer;
"a computer system provides utility programs to perform the tasks needed by most users"
6. 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;