1
: pairing each element of a set uniquely with an element of another set
2

Examples of one-to-one in a Sentence

Recent Examples on the Web
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The goal was to surpass the old record of 2,577 one-to-one swaps. Kristie Keleshian, CBS News, 12 July 2026 Although Michael Jordan himself wore the pair on court as a member of the Washington Wizards, the pair wasn’t exactly a one-to-one match with the team’s blue, black and bronze color palette. Riley Jones, Footwear News, 11 July 2026 Venus activates your 11th House of Friends, trining Chiron in your 7th House of Partnership, so community support can strengthen one-to-one connections. Tarot.com, Baltimore Sun, 10 July 2026 The emotional Moon highlights your 10th House of Career, squaring transformative Pluto in your 7th House of Partnership, so public goals and one-to-one commitments may pull in different directions. Tarot.com, Hartford Courant, 9 July 2026 See All Example Sentences for one-to-one

Word History

First Known Use

1873, in the meaning defined at sense 1

Time Traveler
The first known use of one-to-one was in 1873

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Cite this Entry

“One-to-one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one-to-one. Accessed 16 Jul. 2026.

Kids Definition

one-to-one

adjective
ˌwən-tə-ˈwən
: pairing each element of a set with one and only one element of another set
a one-to-one correspondence between the real numbers and the points on a straight line
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