keep up

verb

kept up; keeping up; keeps up

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.
Gen Zers' social media- and internet-influenced subculture is changing language faster than their elders can keep up. Phaedra Trethan, USA Today, 5 Oct. 2025 Will Archer’s 65-year-old body be able to keep up with the demands of parenting? Claire Franken, TVLine, 4 Oct. 2025 Since the fall of the Soviet Union, Russia has backed separatist forces in the breakaway Transnistria region, as a foothold to keep up pressure on the central government in Chișinău. John E. Herbst, Time, 4 Oct. 2025 Many colleges will feel compelled to pay to keep up with rivals. Michael McCann, Sportico.com, 4 Oct. 2025 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 5 Oct. 2025.

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)

More from Merriam-Webster on keep up

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!