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online Syllabification: on·line
Pronunciation: /änˈlīn/

Definition of online in English:


1Controlled by or connected to another computer or to a network.
Example sentences
  • Still, only thirty-one computers were online - that is connected to each other - in 1960.
  • After the thirty seconds, the system would be completely back online and the IMX network would again run for a full year.
1.1Connected to the Internet or World Wide Web: the ease and convenience of online shopping
More example sentences
  • Also available is an online shopping service that lists recommended foods based on a person's medical history.
  • The free online service is available on the Joburg City website, under e-services.
  • They also say they are more interested in the Internet for online entertainment than other users, according to the study.
Web-enabled, wired, hooked up


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1While so connected or under computer control.
Example sentences
  • Once inside, the controls came online as he flicked on a few switches.
  • Moments later the flight control system came online, my HUD flickering into life.
  • Security controls had been back online as well as the little traps they planted through the space station.
1.1With processing of data carried out simultaneously with its production.
2In or into operation or existence: the town’s new high-tech power plant is expected to go online this month
More example sentences
  • The new facility came online this month and expects to ramp up to full production by March.
  • If all goes well, Munton said construction could begin as early as September, with a fully operational plant online in about a year.
  • Air National Guard offices are expected to go online in July.

Definition of online in:

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