- a building in Arlington, Virginia, having a plan in the form of a regular pentagon, containing most U.S. Defense Department offices.
- the U.S. Department of Defense; the U.S. military establishment.
Origin of pentagon
OTHER WORDS FROM pentagonpen·tag·o·nal [pen-tag-uh-nl], /pɛnˈtæg ə nl/, adjectivepen·tag·o·nal·ly, adverbsub·pen·tag·o·nal, adjective
Words nearby pentagon
How to use pentagon in a sentence
Pentagon leaders agree to a person that the U.S. war against ISIS is succeeding.
“I think it is important to say it is too soon to judge success or failure,” said Col. Steven Warren, a Pentagon spokesman.
Granted, James is in an office in the Pentagon, and not on the front lines.
The Pentagon said Faal served in the Air Force for seven years, during which time he became a U.S. citizen.The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST
But the program is just six weeks long, the Pentagon admitted Monday.Pentagon Insider on New Plan to Fight ISIS: ‘Of Course It’s Not Enough’|Nancy A. Youssef|January 6, 2015|DAILY BEAST
Apparently he got his communication from the Pentagon about the time I got mine.Sense from Thought Divide|Mark Irvin Clifton
They circled the Pentagon with hundreds of protestors and said a magic spell that was supposed to levitate it.
The trick was to come up with something with the media friendliness of the levitation of the Pentagon.
Miles went on to say that he had just been conferring with Ahlgren at the Pentagon.Tom Swift and The Visitor from Planet X|Victor Appleton
Monroe is a five-bastioned fort of masonry work, and accordingly might be roughly described as a huge pentagon.The Old First Massachusetts Coast Artillery in War and Peace|Frederick Morse Cutler
British Dictionary definitions for pentagon (1 of 2)
Derived forms of pentagonpentagonal (pɛnˈtæɡənəl), adjective
British Dictionary definitions for pentagon (2 of 2)
Scientific definitions for pentagon
Other words from pentagonpentagonal adjective (pĕn-tăg′ə-nəl)
Cultural definitions for pentagon (1 of 2)
A polygon having five sides.