under lock and key English

Meaning under lock and key meaning

What does under lock and key mean?

under lock and key Prepositional phrase

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

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

Synonyms under lock and key synonyms

What other words have the same or similar meaning as under lock and key?

under lock and key English » English

locked up