# one-to-one

[wuhn-tuh-wuhn]

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

## Origin of one-to-one^{}

First recorded in 1870–75

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

## Examples from the Web for one-to-one

### Contemporary Examples

#### The very fact of depicting at one-to-one carries special representational weight.

#### “The closest I came to discussing this was in February 2009 when I had a one-to-one meeting,” Coltart said.

#### One-to-one relationships beg for attention as your ruler Pluto is challenged by Venus.

#### Here are a few basic suggestions: In baking, sorghum can be used in place of molasses on a one-to-one basis.

### Historical Examples

#### So by their one-to-one logic we should either hate back or go away.

Planet of the DamnedHarry Harrison

#### But there is not a one-to-one correspondence between sunspots and S-Regions.

Disturbing SunRobert Shirley Richardson

#### The transformer below this has a one-to-one ratio, and is called the insulating transformer.

Cyclopedia of Telephony and Telegraphy, Vol. 2Kempster Miller

# one-to-one

- (of two or more things) corresponding exactly
- denoting a relationship or encounter in which someone is involved with only one other personone-to-one tuition
- maths characterized by or involving the pairing of each member of one set with only one member of another set, without remainder

- a conversation, encounter, or relationship between two people

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012