What does lockdown mean?
A situation in which a place, especially a school or a country, is closed to the public because of a problem, such as a disease or a threat. To confine someone or something to a particular place, especially as a security measure.
Example
"The school was put into lockdown after a bomb threat was received."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.