rub up

verb

rubbed up; rubbing up; rubs up

transitive verb

1
: to revive or refresh knowledge of : recall
2
: to improve the keenness of (a mental faculty)

Examples of rub up in a Sentence

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.
Those spheres would increasingly rub up against one another, and the prospects for geopolitical fracture and great-power war would intensify. Peter D. Feaver, Foreign Affairs, 12 Nov. 2025 All brittleness and bile in the hands of Diego Luna, Valentín’s quiet righteousness rubs up against his cellmate’s grandiosity in all the wrong ways — at first. Blythe Marks, Them., 17 Oct. 2025 These florals rub up against embroidered wall coverings, striped curtains and flashes of marble. Oscar Holland, CNN Money, 8 Oct. 2025 On the second take, Russell’s bossy tone rubbed up nicely against the neediness of the moment. Emily Nussbaum, New Yorker, 6 Oct. 2025 See All Example Sentences for rub up

Word History

First Known Use

circa 1571, in the meaning defined at sense 1

Time Traveler
The first known use of rub up was circa 1571

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Cite this Entry

“Rub up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rub%20up. Accessed 15 Nov. 2025.

Last Updated: - Updated example sentences
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