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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:

However, the Pentagon and Department of Homeland Security can grant exemptions.

From Barron's Jul. 28, 2026

The Department of Homeland Security, which oversees Immigration and Customs Enforcement and Customs and Border Protection, did not immediately respond to a request for comment.

From Los Angeles Times Jul. 28, 2026

More than 40 Kenyans have been arrested by ICE, according to the US Department of Homeland Security website.

From BBC Jul. 27, 2026

The bill would let the Homeland Security Department order emergency actions, with noncompliance penalties of up to $20 million per day.

From The Wall Street Journal Jul. 23, 2026

A man introduced himself as belonging to the Department of Homeland Security.

From "Zeitoun" by Dave Eggers

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

On immigration, we learn that Stephen Miller, the White House deputy chief of staff for policy, was perpetually unhappy with Kristi Noem, the former secretary of homeland security.

From The Wall Street Journal Jun. 26, 2026

“State recommendation for Haiti TPS has not come in despite of many outreach,” a homeland security deputy assistant secretary wrote in a June 2, 2025, email.

From Los Angeles Times Jun. 25, 2026

That growth is being driven by concurrent demand shocks across three distinct markets: military, homeland security, and commercial infrastructure.

From MarketWatch Apr. 13, 2026

John Ashcroft, our homeland security hombre with the heavy brow and the oh-so-serious, tuned-into-all-things-terrorist face, actually offered America a steady, if guarded, smile.

From "Anthem of a Reluctant Prophet" by Joanne Proulx

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