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təˌgɒn noun
1.
a polygon having five angles and five sides.
2.
the Pentagon.
a.
a building in Arlington, Virginia, having a plan in the form of a regular pentagon, containing most U.S. Defense Department offices.
b.
the U.S. Department of Defense; the U.S. military establishment.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To pentagon
00:10
Pentagon
is always a great word to know.
So is bezoar. Does it mean:
| a stew of meat, vegetables, potatoes, etc. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
Collins
World English Dictionary
pentagon (ˈpɛntəˌɡɒn) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| a polygon having five sides | |
| pentagonal | |
| —adj | |
| Pentagon (ˈpɛntəˌɡɒn) | |
| —n | |
| 1. | the five-sided building in Arlington, Virginia, that houses the headquarters of the US Department of Defense |
| 2. | the military leadership of the US |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
pentagon
plane figure with five angles and five sides, 1570, from M.Fr. pentagone, from L.L. pentagonum "pentagon," from Gk. pentagonon, properly neut. of adj. pentagonos "five-angled," from pente "five" + gonia "angle" (see knee). The U.S. military headquarters Pentagon was completed
1942, so called for its shape; used allusively for "U.S. military leadership" from 1945.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
pentagon  (pěn'tə-gŏn') Pronunciation Key
A polygon having five sides. pentagonal adjective (pěn-tāg'ə-nəl) |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary
Pentagon definition
An immense five-sided building in Virginia, just outside Washington, D.C., that serves as headquarters for the Department of Defense.
Note: The term is often used to refer to the Department of Defense or the military: “The Pentagon agreed today to submit the modified weapons plan to the president.”
Note: The Pentagon was severely damaged by the September 11 attacks.
pentagon definition
A polygon having five sides.
Note: The Pentagon is a huge five-sided building near Washington, D.C., that contains offices of the Department of Defense.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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