0 an emergency situation in which people are not allowed to freely enter, leave, or move around in a building or area because of danger:
Police imposed a lockdown in the building until the shooter could be stopped.
It’s important for parents to find ways to keep kids active during lockdown.
We’ve had weeks and weeks of lockdown with this pandemic, so it’s normal to feel anxious.
The prime minister placed the UK on lockdown with drastic new measures to fight the coronavirus outbreak.
The school has been placed on lockdown this morning while authorities investigate a bomb threat.
When they temporarily lifted the lockdown, the gunman shot again.
The government has closed schools, pubs, restaurants, cafes, gyms and other businesses under new lockdown measures.
The emergency safety protocol drills would include lockdown, evacuation and reverse-evacuation, and shelter in place drills.
The school was put on lockdown and police were dispatched for extra security for a couple days until threat was minimized.
Finally, a decision is made to lockdown the city.
Later that day, two intruders got into the backyard, causing a lockdown to be held.
Generally an announcement is given that the building is going on an immediate lockdown.
