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Defense Department

Defense Department

96 3.4
A part of the United States government that protects the country and manages the military
  • noun
  • /dɪˈfɛns dɪˈpɑrtmənt/
  • US
translation icon : Departamento de Defensa
  • The Defense Department is responsible for managing the country's military resources.
  • a Defense Department official
  • the U.S. Defense Department
  • Defense Department and security

So the way it starts is in space, meaning the US Defense Department has a early warning system.

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Examples

  • Government and Defense Department officials are concerned by reports of panic in several large eastern cities.

  • Now, ultimately, the Defense Department will wait for second confirmation of that missile from a ground radar system.

  • Well, just by luck, I ran into a program officer in the Defense Department and what was then called the Advanced Research Projects Agency.

  • In this situation, the Defense Department would take the leading role.

    Academic text (1998)
  • A division within the U.S. Defense Department is called the Defense Advanced Research Projects Agency.

    Blog text (23)
  • The Defense Department in Washington has just confirmed the tragic news.

  • All evidence was thoroughly reviewed by top Defense Department analysts.

  • In 1988, the Defense Department adopted a new program for closer bilateral military relations with Mexico.

    Academic text (2000)
  • The Defense Department has just announced that the unidentified flying object has suddenly disappeared from our radar screen.

  • The Bush administration has recently succeeded in achieving a massive increase in funding for the Defense Department, reversing years of deferred investment.

    Academic text (2003)

Synonyms

Defense
vsDefense Department
  • US
831 3.7

The part of the United States government that runs the military and protects the country

focuses on safeguarding national security and leading the armed forces directly
the Pentagon
vsDefense Department
242 3.6

A large five-sided building in Arlington where US military leaders work

refers to the organization rather than to the physical headquarters
Department of Defense
vsDefense Department
  • Formal
66 3.5

A United States government office that protects national security and manages the armed forces

uses the alternate word order for the same federal agency name
DoD
vsDefense Department
  • Formal
51 5.2

A US government department that protects the country and runs the armed forces

spells out the full agency title rather than the short form
United States Department of Defense
vsDefense Department
  • Formal
1 3.9

A United States government department that protects the country's security and runs the armed forces

omits the country name and uses a shorter title for the same agency
Pentagon
vsDefense Department
3.6

The United States military leaders and officials who make defense decisions

means the formal organization charged with national security and armed forces oversight

Surface Forms

Morphology

Defense + department

The phrase is a straightforward noun–noun compound: 'defense' (protection/military functions) + 'department' (organizational unit), so a learner who knows both words can infer it names the government unit responsible for defense. This compositional pattern is cross-linguistically common (e.g. 'Ministry/Department of Defense' in many languages), making the meaning transparent to B1 learners.

Etymology

Defense Department comes from the idea of one department in charge of defense, joining the different military branches so they could work together to 'protect' the country. So, Defense Department means the part of the U.S. government that runs the armed forces and 'protects' the nation.