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Homeland Security

¹ British

noun

the United States Department of Homeland Security, the body responsible for dealing with terrorist threats on American soil

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

homeland security ² British

noun

precautions taken by the government of a specified country against terrorist attacks

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Last week, the Senate finally settled on a plan to end the Department of Homeland Security shutdown.

From Slate • Apr. 4, 2026

The BBC has asked the US Department of Homeland Security for comment.

From BBC • Apr. 3, 2026

Congress returns from a break the week of April 13 and will begin debating the budget even as lawmakers are fighting over the current year’s Department of Homeland Security funds.

From MarketWatch • Apr. 3, 2026

TMZ is turning its celebrity lens on Congress, tracking lawmakers on recess as a nearly six-week Department of Homeland Security shutdown drags on.

From Los Angeles Times • Apr. 1, 2026

The Federal Emergency Management Agency had been its own freestanding agency for decades, but after 9/11 had been folded into the Department of Homeland Security.

From "Zeitoun" by Dave Eggers

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023