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

Examples of one-to-one in a Sentence

Recent Examples on the Web Awarded to those in the midst of, or on the cusp of their breakthrough moment, the year-long initiative includes one-to-one meetings and career guidance, full voting membership, access to BAFTA events and screenings, as well as networking events, both in the U.K. and internationally. Naman Ramachandran, Variety, 29 Nov. 2023 Social media is unique in that it's rooted in connection, with platforms designed to be one-to-one or one-to-many messaging. Expert Panel®, Forbes, 29 Nov. 2023 The commission’s modifications will add language to require a one-to-one replacement of low-cost hotel or motel facilities and will require more expensive hotels to make a quarter of their rooms lower cost, or else pay a fee to help fund future development of cheaper accommodations. Emily Alvarenga, San Diego Union-Tribune, 20 Nov. 2023 The easy cocktail recipe traditionally features an foolproof one-to-one ratio of red wine and citrus soda, and was first a staple in Spain. Karla Walsh, Better Homes & Gardens, 20 Nov. 2023 Managers can figure out employee values from psychometric testing, surveys or one-to-one interviews. Barnaby Lashbrooke, Forbes, 13 Nov. 2023 More than his recent predecessors, Francis has used interviews and one-to-one meetings to communicate his prerogatives. Paul Elie, The New Yorker, 8 Nov. 2023 There was an almost one-to-one correlation: When remote work rose 2 percent, there was a 2 percent rise in mothers’ employment. Emma Goldberg, New York Times, 18 Oct. 2023 Unlike banks, crypto exchanges are expected to store customer funds in a one-to-one ratio: For every dollar’s worth of assets deposited, the exchange is supposed to keep a dollar’s worth on hand for withdrawal. Joel Khalili, WIRED, 28 Sep. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'one-to-one.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near one-to-one

Cite this Entry

“One-to-one.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

Kids Definition


: 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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