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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

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homeland security ² British  

noun

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

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Example Sentences

The Department of Homeland Security is concerned about people remaining in the country after visas have expired and says there were more than 538,000 "overstay events" between October 2023 and September 2024.

From BBC • Jun. 7, 2026

The Department of Homeland Security initially asked the Social Security Administration to mark about 6,000 living people as dead, and those people were added to the death file, according to the latest complaint.

From MarketWatch • Jun. 5, 2026

Homeland Security data from the first quarter of the 2025 fiscal year, the latest available, shows that of some 350,000 new permanent residencies issued, about 190,000—54 percent—were adjustments, which is in keeping with historical trends.

From Slate • Jun. 5, 2026

Northern Command, which oversees the Joint Task Force, said questions should be directed to the Department of Homeland Security because they directed the Department of Defense to install the wire.

From Los Angeles Times • Jun. 3, 2026

It was not the Department of Labor on the phone, he said, but the Department of Homeland Security, pretending to be the Department of Labor.

From "Educated" by Tara Westover