one-to-one

adjective
\ ˌwən-tə-ˈwən , -də- \

Definition of one-to-one 

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

First Known Use of one-to-one

1873, in the meaning defined at sense 1

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Time Traveler for one-to-one

The first known use of one-to-one was in 1873

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More Definitions for one-to-one

one-to-one

adjective

English Language Learners Definition of one-to-one

: involving two people who are dealing with each other directly

: perfectly matching one thing in a group to another thing in another group

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