American Heritage® Dictionary of the English Language, Fourth Edition
- n. The confinement of prison inmates to their cells as a security measure following a disturbance in the prison.
- n. A prison, especially a high-security one.
- n. A device that secures a piece of equipment, especially a computer, so that it cannot be moved or stolen.
- From lock + down (Wiktionary)
“He never really had to go into what I call lockdown.”
“And the school is under what they call lockdown, with no one being allowed in or out of the school.”
“Not surprisingly, shortly after Google+ made its debut, Zuckerberg flipped on a pink neon sign at headquarters with the word lockdown, signaling that employees were on notice to work around the clock on, among other things, replicating some of the most praised Google+ features.”
“With their first-round pick, they took Georgia Tech guard Iman Shumpert, who is known as a lockdown defender.”
“WASHINGTON (CNN) – The Republican National Committee was placed in lockdown for 1.5 hours Tuesday afternoon after a suspicious package was discovered in the mailroom.”
“What would you do if you had been mistaken for an illegal immigrant on Friday night and spent the entire weekend in lockdown with a bunch of crazy criminals a couple of which might have beaten you up at some point during the weekend.”
“Urumqi in lockdown after Uighurs riot (The Australian)”
“Gabriel is now 70 pounds of rambunctiousness, and Ed and Teri say they're in "lockdown mode.”
“Nevertheless, I do think the timing of this operation, and the pattern of Israeli activity leading up to it over the past several months, mainly keeping the screws tight on the Gaza lockdown, is likely in part related to the US political situation.”
“Our intrepid cast is in lockdown in one room with, I hazard to guess, a secondary air ventilation system.”
These user-created lists contain the word ‘lockdown’.
Rebellious destruction, police and protestors, or just angry mobs.
Looking for tweets for lockdown.