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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 Iranian national football team agreed to these terms," a US Department of Homeland Security spokesperson told the BBC when asked for a response to Ghalenoei's comments.

From BBC • Jun. 19, 2026

The Department of Homeland Security called Operation Metro Surge the largest operation in agency history when it deployed thousands of federal officials—from such agencies as Immigration and Customs Enforcement, U.S.

From The Wall Street Journal • Jun. 16, 2026

Seven federal agencies — including the Department of Homeland Security and the Federal Aviation Administration — committed significant resources and manpower.

From Salon • Jun. 15, 2026

Nor would anyone have the authority to demand that, for instance, the FBI share information with the Department of Homeland Security.

From Slate • Jun. 15, 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