Definition of “one-to-one” - English Dictionary

“one-to-one” in British English

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one-to-oneadjective

uk /ˌwʌn.təˈwʌn/ us /ˌwʌn.təˈwʌn/

one-to-one adjective (SAME VALUE)

used to describe something that has the same value as another thing:

The dollar was linked to the peso at a one-to-one rate.

one-to-one adjective (TWO PEOPLE)

[ before noun ] UK US one-on-one A one-to-one activity involves two people talking directly, usually with one teaching or giving information to the other:

These children have special educational needs and require one-to-one attention.

one-to-oneadverb

uk /ˌwʌn.təˈwʌn/ us /ˌwʌn.təˈwʌn/

UK US one-on-one If two people discuss something one-to-one, they discuss it directly, without involving anyone else:

It's best to talk to him about the problem one-to-one.

one-to-onenoun [ C ]

uk /ˌwʌn.təˈwʌn/ us /ˌwʌn.təˈwʌn/ plural one-to-ones

UK US one-on-one a discussion or activity that involves two people talking directly, usually with one teaching or giving information to the other:

I have regular one-to-ones with my manager.

(Definition of “one-to-one” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“one-to-one” in Business English

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one-to-oneadjective [ before noun ]

uk /ˌwʌntəˈwʌn/ us

used to describe the fact of one thing being worth the same as the second:

The old banknotes were exchanged for the new at a one-to-one rate.

US one-on-one MEETINGS involving only two people:

one-to-one training
a one-to-one meeting

(Definition of “one-to-one” from the Cambridge Business English Dictionary © Cambridge University Press)