Meanings
nounhomeland security (uncountable)
- USuncountableThe concerted national effort, principally by government, to keep the United States safe and resilient to terrorism and other hazards.
Synonyms & antonyms
nounthe federal department that administers all matters relating to homeland security
Similar
Department of Homeland Security
Broader
executive department
Synonym sets from Open English WordNet, CC BY 4.0.
Cite this entry
APA
homeland security. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/homeland%20security
MLA
“homeland security.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/homeland%20security. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “homeland security,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/homeland%20security.
Source: homeland security on Wiktionary, CC BY-SA 4.0.