: connected to, served by, or available through a system and especially a computer or telecommunications system (such as the Internet)
an online database
also : done while connected to such a system
online shopping
online games
online searching
online adverb

Examples of online in a Sentence

The city libraries are all online. He likes to engage in online chats.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Smith was booked into the Lonoke County jail on the felony charge, then released around noon Friday, according to an online inmate roster. Rafael Escalera Montoto, Arkansas Online, 20 Sep. 2025 The attack on Transport for London resulted in outages of the agency’s internal services and online services but not its transportation services. Dan Goodin, ArsTechnica, 19 Sep. 2025 Schweers openly shared her journey battling multiple sclerosis and infertility to her online community, documenting the highs, the lows, everything. Essence, 19 Sep. 2025 Ever since, the ruling has put the onus on retailers and brands to police online marketplaces themselves, conduct test buys to find counterfeit products and submit requests to have the items taken down. Gabrielle Fonrouge,paige Tortorelli, CNBC, 19 Sep. 2025 See All Example Sentences for online

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of online was in 1950

Browse Nearby Words

Cite this Entry

“Online.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/online. Accessed 23 Sep. 2025.

Kids Definition

online

adjective
ˈȯn-ˈlīn,
ˈän-
: relating to or connected to a computer or telecommunications system (as the Internet)
an online database
online adverb

More from Merriam-Webster on online

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!