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  • Homeland Security
    Homeland Security
    noun
    the United States Department of Homeland Security, the body responsible for dealing with terrorist threats on American soil
  • homeland security
    homeland security
    noun
    precautions taken by the government of a specified country against terrorist attacks

Homeland Security

1 British  

noun

  1. 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

  1. 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.

See Examples For:

A spokesperson for the Department of Homeland Security said Galeano was detained because he overstayed his tourist visa, which gave him permission to remain in the U.S. only through 2019, and encouraged Galeano to self-deport.

From Los Angeles Times Sep. 17, 2026

Schroyer's nomination did not manage to make it to a full Senate vote and had stalled in the Senate's Homeland Security committee.

From BBC Sep. 17, 2026

The executive branch was reorganized in the wake of 9/11 to create the Department of Homeland Security, along with a wholly new law enforcement agency in Immigration and Customs Enforcement.

From Salon Sep. 11, 2026

Nearly 51,000 undocumented migrants were arrested in the United States in August, according to Department of Homeland Security figures.

From Barron's

There were four Maritime Security and Safety Teams, the new Coast Guard tactical units that Homeland Security had formed as part of the War on Terror.

From "Zeitoun" by Dave Eggers

Priebus was fairly swiftly given the heave-ho in favor of retired Gen. John Kelly, who was serving as secretary of homeland security.

From Salon Sep. 20, 2026

Thousands of other Americans volunteered to serve in the military, the intelligence community, law enforcement and homeland security, or to develop new capabilities to defend the country.

From The Wall Street Journal Sep. 11, 2026

In the US capital, the department of homeland security and emergency management said air quality was "unhealthy for at-risk groups" including children and the elderly, urging people to limit time outdoors.

From Barron's Jul. 18, 2026

US President Donald Trump later replaced Kristi Noem as homeland security with Markwayne Mullin, a senator from Oklahoma.

From BBC Jul. 14, 2026

When I returned to the States, I interned in Washington, D.C., focusing on homeland security issues.

From "The Other Wes Moore: One Name, Two Fates" by Wes Moore

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