Definition of online in English:



  • 1Controlled by or connected to a computer.

    • ‘After the thirty seconds, the system would be completely back online and the IMX network would again run for a full year.’
    • ‘Still, only thirty-one computers were online - that is connected to each other - in 1960.’
    1. 1.1 (of an activity or service) available on or performed using the Internet or other computer network.
      ‘online banking’
      • ‘Godfrey has also sued several other Internet service providers and online publications.’
      • ‘You can find more information about online education on the internet.’
      • ‘Also available is an online shopping service that lists recommended foods based on a person's medical history.’
      • ‘They also say they are more interested in the Internet for online entertainment than other users, according to the study.’
      • ‘The free online service is available on the Joburg City website, under e-services.’


  • 1While connected to a computer or under computer control.

    • ‘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.’
    • ‘Once inside, the controls came online as he flicked on a few switches.’
    1. 1.1 By means of the Internet or other computer network.
      ‘shoppers would rather pick up the phone than do business online’
      • ‘White goods are becoming increasingly popular to buy online, with internet sales now accounting for 6.6% of the market.’
      • ‘Key risks in doing business online were identified as damage to reputations, fraud and intellectual property losses.’
      • ‘We re-engineered all the forms to allow companies to conduct their regulatory business online.’
      • ‘Exams and unit tests could be taken online over the internet.’
      • ‘Smartads is dedicated to helping you expose your business online and offline.’
      • ‘Intelligence analysts and operatives surf its secrets with the ease of an Internet user shopping for books online.’
      • ‘In the campaign, police used the Internet, searching online for the fugitives.’
      • ‘If they did a better job and more people watched online, those networks would lose even more.’
      • ‘There was also the facility to order prints online by connecting to the Internet and paying online without having to go to a photo outlet.’
      • ‘Mobile users will be able to make video calls, download pictures online or access the Internet at faster speeds via 3G technology.’
      • ‘But those of us who shop online know the internet puts an end to a lot of the frustration of shopping in the high street.’
      • ‘Toefel compared buying art over the Internet to buying clothes online.’
      • ‘The horrific nature of many of the war-related images that have appeared online have left Internet users with a range of feelings.’
      • ‘This is obviously a paid for service, but we do help ensure your business is a success online.’
      • ‘Ease of use is an important characteristic when residents decide to conduct government business online.’
      • ‘Imagine being able to design and order your business card online without even having to leave your office desk.’
      • ‘About 13m people bank online and internet fraud cost the banking industry more than £45m in 2003.’
      • ‘Most companies expect to be doing some business online by next year, he stated.’
      • ‘You should also try not to bank online over a wireless network.’
    2. 1.2 With processing of computer data carried out simultaneously with its production.
  • 2In or into operation or existence.

    ‘the new power plant will go online this month’
    ‘the company has additional production capacity coming online later this year’
    • ‘The legwork has been taken out of the planning procedure by a Yorkshire council which has become one of the first authorities in Britain to put the whole process online.’
    • ‘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.’
    • ‘The new facility came online this month and expects to ramp up to full production by March.’
    • ‘Now that we have reminded them, we expect it to be online shortly.’