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.
An escort is an adult, most often a young adult male, who forms a one-to-one bond with a particular pup once the kids are old enough to leave the den. Big Think, 8 May 2026 The climate crisis is not a one-to-one doctor-to-patient, doctor-as-singular-hero scenario. Literary Hub, 6 May 2026 Pitch sessions will take place on May 16 and one-to-one meetings throughout the three days of the IP market. K.j. Yossman, Variety, 15 Apr. 2026 Service, with a nearly one-to-one crew-passenger ratio, is at Silversea’s usual impeccable level. Condé Nast, Condé Nast Traveler, 15 Apr. 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 May. 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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