under lock and key en · ADP
Pronunciation
- (Australia) audio
Meanings
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(UK, US, 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.
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(UK, US, idiomatic) Safely guarded; locked away.
It is the policy of the organization to keep unused check supplies safeguarded under lock and key.
2008, Edward J. McMillan, Model Policies and Procedures for Not-for-Profit Organizations, page 239:
Translations (4)
pl pod kluczem (safely guarded, locked away) · fr sous clé (safely guarded, locked away) · fi lukkojen takana (safely guarded, locked away) · es a cal y canto (safely guarded, locked away)