lockdown

noun

lock·​down ˈläk-ˌdau̇n How to pronounce lockdown (audio)
plural lockdowns
1
: the confinement of prisoners to their cells for all or most of the day as a temporary security measure
2
a
: an emergency measure or condition in which people are temporarily prevented from entering or leaving a restricted area or building (such as a school) during a threat of danger
For those of you unfamiliar with a school lockdown, it basically means that … when there is a threat of danger, the doors to all the classrooms and offices are locked.Anne Sponholtz
lockdown drills/procedures
b
: a temporary condition imposed by governmental authorities (as during the outbreak of an epidemic disease) in which most people are required to refrain from or limit activities outside the home involving public contact (such as dining out or attending large gatherings)
Authorities placed the central Chinese city under lockdown on Jan. 23 after the virus had infected hundreds of residents and was just starting its spread across the globe.Darryl Coote
The San Francisco Bay Area lockdown and national guidelines signal a rapid escalation of government and business efforts to halt the coronavirus spread via restrictions that will slam the brakes on economic activity.Ed Carson
While most people are at home during lockdown, essential workers are still on the front lines and need their children to be looked after.George Heagney

Examples of lockdown in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As the Sheriff tries to enforce curfews and lockdowns, and the Mayor tries to enforce mask mandates, and each ignores the other, tensions grow until Sheriff Cross spontaneously announces his intention to unseat Garcia as mayor. Scott Phillips, Forbes.com, 15 July 2025 During that period prisoners escaped, staff overtime pay soared and lockdowns kept prisoners from exercise, fresh air and educational programming, leading some to routinely threaten suicide. Mario Koran, jsonline.com, 12 July 2025 Oklahoma City Thunder wing man Alex Caruso, who helped his team win an NBA Championship last month thanks to his lockdown defense, scored 18 points in the first round and began Saturday in sixth place. Sacbee.com, 12 July 2025 Boyd said inmates who clog toilets are subject to a disciplinary lockdown, which separates an individual from the general jail population and revokes certain privileges. Kansas City Star, 11 July 2025 See All Example Sentences for lockdown

Word History

First Known Use

1973, in the meaning defined at sense 1

Time Traveler
The first known use of lockdown was in 1973

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Cite this Entry

“Lockdown.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lockdown. Accessed 21 Jul. 2025.

Kids Definition

lockdown

noun
lock·​down
ˈläk-ˌdau̇n
1
: the confinement of prisoners to their cells as a security measure
2
a
: an emergency measure in which people are temporarily prevented from entering or leaving a restricted area during a threat of danger
b
: a temporary condition imposed by government authorities (as during the outbreak of an epidemic disease) in which people are required to stay in their homes and refrain from or limit activities outside the home (as dining out)

Legal Definition

lockdown

noun
lock·​down ˈläk-ˌdau̇n How to pronounce lockdown (audio)
: the confinement of prisoners to their cells for a temporary period as a security measure

More from Merriam-Webster on lockdown

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