one-to-one

adjective

ˌwən-tə-ˈwən 

-də-

1

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

2

: one-on-one sense 2

Examples of one-to-one in a Sentence

Recent Examples on the Web

Several months ago, the district launched a guiding coalition that included administrators and more than 100 teachers to examine its one-to-one device model, which ensures every student has a computer. — Becca Savransky, Idaho Statesman, 21 Aug. 2026

In the studio, while setting up a model for the piece using real weights and real jerseys and making a one-to-one maquette, a couple of things happened. — Andy Battaglia, ARTnews.com, 21 Aug. 2026

The comparison isn’t a one-to-one (Ramirez was part of the 2004 World Series team that ended the 86-year championship drought), but Ramirez’s final days in Boston were even more tumultuous. — Justice Delos Santos, Mercury News, 20 Aug. 2026

For example, prior to the first day of school this August, YouTube will be banned on one-to-one devices. — Paris Barraza, USA Today, 4 Aug. 2026

Word History

First Known Use

1873, in the meaning defined at sense 1

Rhymes for one-to-one

• anyone
• everyone
• megaton
• overdone
• overrun
• begun
• grandson
• gudrun
• handgun
• homespun
• outdone
• outrun

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