one-to-one

adjective

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
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.
Students who receive one-to-one tuition perform better than those who learn in large classes. David Prosser, Forbes.com, 7 Apr. 2025 In Trump's framework, these are not strictly one-to-one matches but are calculated based on what the administration perceives as the total impact of direct tariffs and indirect trade barriers—such as subsidies, quotas, and technical standards. Newsweek Staff, MSNBC Newsweek, 4 Apr. 2025 Ghee is versatile and can replace butter at a one-to-one ratio in cooking and baking. Allison Herries, Verywell Health, 2 Apr. 2025 The result is a true one-to-one comparison that works seamlessly in both sweet and savory dishes. Symiah Dorsey, Southern Living, 2 Apr. 2025 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 Apr. 2025.

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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