LOCKDOWN


Meaning of LOCKDOWN in English

lock·down /ˈlɒkdaʊn $ ˈlɑːk-/ BrE AmE noun [uncountable and countable]

1 . a time when prisoners are not allowed out of their rooms, usually after there has been violence in the prison

2 . a time when all the doors in a building are locked in order to protect the people inside from danger:

The school went into lockdown after the shooting.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.