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Idiom: Under Lock And Key

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under lock and key 

Meanings

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Example Sentences

1
He keeps his valuable jewelry under lock and key in a safe.
2
The confidential documents are stored under lock and key in a secure vault.
3
After the incident, the dangerous chemicals were put under lock and key.
4
She keeps her diary under lock and key to protect her privacy.
5
The museum keeps the rare artifacts under lock and key to prevent theft.

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