one-to-one

American  

[wuhn-tuh-wuhn] / ˈwʌn təˈwʌn /

adjective

1. Also (of the relationship between two or more groups of things) corresponding element by element.

2. one-on-one.

---

one-to-one British  

adjective

1. (of two or more things) corresponding exactly

2. denoting a relationship or encounter in which someone is involved with only one other person

   one-to-one tuition

3. maths characterized by or involving the pairing of each member of one set with only one member of another set, without remainder

---

noun

1. a conversation, encounter, or relationship between two people

Etymology

Origin of one-to-one

First recorded in 1870–75

Compare meaning

How does one-to-one compare to similar and commonly confused words? Explore the most common comparisons:

• onto vs. one-to-one

Example Sentences

Like most popular stablecoins, tether maintains a one-to-one peg to the U.S. dollar.

From The Wall Street Journal

It will also fund interventions with pupils who need one-to-one support.

From BBC

Those spectra tracked changing signatures in the ejected gas, and new spectral features matched up with structures seen in the interferometric images, providing a direct one-to-one confirmation of how the flows were forming and colliding.

From Science Daily

Oversimplifying those decisions through inappropriate one-to-one comparisons between wildly different countries does not just blur the science; it systematically raises the mid- to long-term financial risk profile for the U.S.

From MarketWatch

The baby loss support charity, based in Balsall Common, near Solihull, provides one-to-one bereavement support to families and gives out memory boxes.

From BBC