keep up

verb

kept up; keeping up; keeps up
Synonyms of keep upnext

transitive verb

: to persist or persevere in
kept up the good work
also : maintain, sustain
keep standards up

intransitive verb

1
: to keep adequately informed or up-to-date
keep up on international affairs
2
: to continue without interruption
rain kept up all night
3
: to maintain contact or relations with someone
keep up with old friends

Examples of keep up in a Sentence

let's hope that old air conditioner keeps up through this heat wave kept the house up while the owners were gone
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.
DeBolt, who’d been keeping up with his adventures on Facebook, was especially concerned when Alberti faced flooding in Thailand that forced him to wait out dangerous water levels for days. Denise Crosby, Chicago Tribune, 21 June 2026 This can sometimes take months and requires keeping up with soil amendments so the plant doesn't revert back to its old hue. Steve Bender, Southern Living, 20 June 2026 Want to keep up with the latest crime coverage? Desiree Anello, PEOPLE, 20 June 2026 The Aussies couldn’t keep up with Balogun, who raced away down the left wing and created another early goal. Henry Bushnell, New York Times, 20 June 2026 See All Example Sentences for keep up

Word History

First Known Use

15th century, in the meaning defined at transitive sense

Time Traveler
The first known use of keep up was in the 15th century

Cite this Entry

“Keep up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keep%20up. Accessed 25 Jun. 2026.

Kids Definition

keep up

verb
1
: maintain sense 1
keep standards up
2
: to stay well informed about something
keep up on the news
3
: to continue without interruption
rain kept up all night
4
: to stay even with others (as in a race)

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