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.
This happening in a very, one-to-one, very kind of community-level aspect. Charlie Warzel, The Atlantic, 30 Jan. 2026 To avoid damage, use vinegar only when necessary and use a one-to-one ratio. Karen Brewer Grossman, Southern Living, 23 Jan. 2026 Virtual sitters help prevent falls without requiring one-to-one assignments in every room. David Chou, Forbes.com, 22 Jan. 2026 The new shots reveal that the upcoming reissue will be a near one-to-one of the style’s previous 2017 iteration. Riley Jones, Footwear News, 13 Jan. 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 10 Feb. 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
Last Updated: - Updated example sentences
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