lockdown
//ˈlɒk.daʊn//
Noun
lockdownSingular
lockdownsPlural
1
An official order restricting people to their homes or a specific area, typically as a security measure or to prevent the spread of disease.
The government announced a nationwide lockdown to stop the spread of the virus.
2
A state of isolation or restricted access imposed as a security measure, especially in a prison or school.
The school went into lockdown after a suspicious person was seen near the building.