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online

American  
[on-lahyn, awn-] / ˈɒnˈlaɪn, ˈɔn- /
Or on-line,

adjective

  1. operating under the direct control of, or connected to, a main computer.

  2. connected by computer to one or more other computers or networks, as through a commercial electronic information service or the internet.

  3. of or denoting a business that transmits electronic information over telecommunications lines.

    an online bookstore.

  4. available or operating on a computer or computer network.

    an online dictionary.

  5. by means of or using a computer.

    online shopping.

  6. Radio. (of a network) supplying affiliated stations with all or a substantial part of their programming.

  7. Television. of or relating to the final editing of a videotaped program.

  8. done or accomplished while in operation or active service.

    online maintenance.

  9. located on major routes or rail lines.

    online industries.


adverb

  1. with or through a computer, especially over a network.

online British  
/ ˈɒnˌlaɪn /

adjective

  1. of, relating to, or concerned with a peripheral device that is directly connected to and controlled by the central processing unit of a computer

  2. of or relating to the internet

    online shopping

  3. occurring as part of, or involving, a continuous sequence of operations, such as a production line

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. while connected to a computer or the internet

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
online Scientific  
/ ŏnlīn /
  1. Connected to or accessible by means of a computer or computer network.


online Cultural  
  1. A term referring to locations on or use of the Internet. The term can be used to refer to a specific location or Web page (“Our sales catalogues can be found online at — ”) or to a personal activity (“I went online to find the information you wanted.”)


Etymology

Origin of online

First recorded in 1915–20 (in sense “located on rail lines”); 1945–50 for other senses

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Davies replaced Dyer just before the first show was televised and was later subject to online criticism that her background in performing arts gave her an advantage over other contestants.

From BBC

Tickets can be bought online or at the fountain with cards or other contactless payment methods, officials said.

From Barron's

But these new factories won’t come online soon enough to ease next year’s supply crunch.

From Barron's

It follows a December 2024 court ruling which found the brothers had not paid tax on £21m of revenue from their online business and had laundered money through bank accounts based in Devon.

From BBC

The Prison Governors Association has said a surge in applications from west Africa appears to have been fuelled by word of mouth and jobs being promoted online by the expat Nigerian community.

From BBC