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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

“Are we serious about enforcing these sanctions or not?” said Elaine Dezenski, a former senior Department of Homeland Security official now at the Foundation for Defense of Democracies, a Washington think tank.

From The Wall Street Journal • Jun. 21, 2026

"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

Earlier this year, the Department of Homeland Security awarded a contract to a company that makes a drone with massive nets to ensnare other drones.

From Los Angeles Times • Jun. 18, 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

They were working undercover for the Department of Homeland Security.

From "The Book of Unknown Americans" by Cristina Henríquez