Department of Defense

American  

noun

1. the department of the U.S. federal government charged with ensuring that the military capacity of the U.S. is adequate to safeguard the national security. DOD

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Department of Defense Cultural  

1. A department of the federal executive branch entrusted with formulating military policies and maintaining American military forces. Its top official is the civilian secretary of defense. It is headquartered in the Pentagon.

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Example Sentences

See Examples For:

Department of Defense

Consider these items in the law that funded the Department of Defense this year:

From Salon ● Aug. 20, 2026

His idea sounds less wild when you recall that we’re really talking about small communities being targeted by hostile foreign actors, leading Braun to reason that the Department of Defense could possibly fund his effort.

From Slate ● Aug. 19, 2026

Department of Defense will be charged with deploying the assets into the country, Rubio said.

From Los Angeles Times ● Jun. 25, 2026

Department of Defense in a San Jose federal court.

From The Wall Street Journal ● Jun. 25, 2026

Your sister, Celie Dear Nettie, The only piece of mail Mr. ever put directly in my hand is a telegram that come from the United States Department of Defense.

From "The Color Purple" by Alice Walker