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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.

The Department of Homeland Security - the agency that helps ward off against cyber attacks - "must immediately help states and localities", Schumer wrote.

From BBC • May 8, 2026

US Homeland Security officials said Soliman was in the country illegally, having overstayed a tourist visa, but that he had applied for asylum in September 2022.

From Barron's • May 7, 2026

Schwank said there is no equivalent to the Marines course at Homeland Security.

From Los Angeles Times • May 6, 2026

Complete paid an attorney $25,000 to deal with the Department of Homeland Security, put off plans to renovate the office and bathroom, and delayed a planned price increase.

From The Wall Street Journal • May 5, 2026

They were working undercover for the Department of Homeland Security.

From "The Book of Unknown Americans" by Cristina Henríquez

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

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.