Dictionary
one–to–one
adjective \ˌwən-tə-ˈwən, -də-\
: involving two people who are dealing with each other directly
: perfectly matching one thing in a group to another thing in another group
Full Definition of ONE-TO-ONE
1
: pairing each element of a set uniquely with an element of another set
2
: one-on-one 2
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First Known Use of ONE-TO-ONE
1873
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