under lock and key


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under lock and key

Securely locked up, as in He keeps the wine under lock and key. [First half of 1500s]
See also: and, key, lock

under lock and key

securely locked up.
See also: and, key, lock

under ˌlock and ˈkey

locked up in prison, in a safe, etc: The escaped prisoners are now safely under lock and key.The exam papers must be kept under lock and key until half an hour before the exam.
See also: and, key, lock

under lock and key

Securely locked up.
See also: and, key, lock
References in classic literature ?
There's no safety for anyone until he is under lock and key.
I shall feel more at ease when we have our story-teller here safe under lock and key.
But, as it was just possible, when the police came to investigate the matter, that discoveries affecting the jugglers might be made, he would contrive, by committing them as rogues and vagabonds, to keep them at our disposal, under lock and key, for a week.
He could not forcibly have abducted the missing pair and kept them under lock and key.
Do you think yourself my master, that you try to keep me under lock and key like this?