department of defense

1. 1.

   the federal department responsible for safeguarding national security of the United States; created in 1947

   SynonymsDefense DepartmentUnited States Department of DefenseDefenseDoD

   Broaderexecutive department

   PartsDefense Advanced Research Projects AgencyDepartment of Defense Laboratory SystemUnited States NavyUnited States Air ForceDefense Intelligence AgencyDefense Logistics Agency

Questions about department of defense

What does department of defense mean?

department of defense means "the federal department responsible for safeguarding national security of the United States; created in 1947".

What is another word for department of defense?

Close synonyms include Defense Department, United States Department of Defense, Defense, DoD. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is department of defense a common word?

department of defense is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.