one-to-one

adjective
\ ˌwən-tə-ˈwən How to pronounce one-to-one (audio) , -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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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
formal : perfectly matching one thing in a group to another thing in another group