最終更新日：2024/07/31

(US, UK, idiomatic) imprisoned with little or no chance of escape; locked up. / (US, UK, idiomatic) safely guarded; locked away.

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under lock and key

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元となった辞書の項目

under lock and key

prep_phrase

The valuable jewelry is kept under lock and key.

意味（1）

(US, UK, idiomatic) imprisoned with little or no chance of escape; locked up.

If it was him we can have him under lock and key in 24 hours.

意味（2）

(US, UK, idiomatic) safely guarded; locked away.

It is the policy of the organization to keep unused check supplies safeguarded under lock and key.