: 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 on line in a Sentence
Adjective
The city libraries are all online.
He likes to engage in online chats.
Recent Examples on the Web
Denni Hu, Footwear News, 29 Apr. 2026
Inventory at the Statesmen Market primarily depends on what the Greater Chicago Food Depository has to offer, but there is an online system for Kennedy-King to order select items and quantities from the pantry’s warehouse.
—Zareen Syed, Chicago Tribune, 29 Apr. 2026
An online claim in the same name also took responsibility for Wednesday’s stabbing.
—Jill Lawless, Los Angeles Times, 29 Apr. 2026
Arriving flights at Dallas Love Field airport are facing a delay of an hour and seven minutes on average, according to online flight tracking service FlightAware.
—Lillie Davidson, Fort Worth Star-Telegram, 29 Apr. 2026
See All Example Sentences for on line
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Adjective
Future Beauty noted that this structural shift in the local market led to the slowdown in domestic brands’ online growth.
—Denni Hu, Footwear News, 29 Apr. 2026
Inventory at the Statesmen Market primarily depends on what the Greater Chicago Food Depository has to offer, but there is an online system for Kennedy-King to order select items and quantities from the pantry’s warehouse.
—Zareen Syed, Chicago Tribune, 29 Apr. 2026
An online claim in the same name also took responsibility for Wednesday’s stabbing.
—Jill Lawless, Los Angeles Times, 29 Apr. 2026
Arriving flights at Dallas Love Field airport are facing a delay of an hour and seven minutes on average, according to online flight tracking service FlightAware.
—Lillie Davidson, Fort Worth Star-Telegram, 29 Apr. 2026
See All Example Sentences for on line
Cite this Entry
“On line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20line. Accessed 1 May. 2026.
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