American Heritage® Dictionary of the English Language, Fourth Edition
- n. A polygon having five sides and five interior angles.
- n. A five-sided building near Washington, D.C., containing the U.S. Department of Defense and the offices of the U.S. Armed Forces. Used with the.
Century Dictionary and Cyclopedia
- n. In geometry, a figure of five sides and five angles: if all the sides and all the angles are equal it is a regular pentagon.
- n. In fortification, a fort with five bastions.
- n. geometry A polygon with five sides and five angles.
GNU Webster's 1913
- n. (Geom.) A plane figure having five angles, and, consequently, five sides; any figure having five angles.
- n. the United States military establishment
- n. a five-sided polygon
- n. a government building with five sides that serves as the headquarters of the United States Department of Defense
- From French pentagone or late Latin pentagonum, from Ancient Greek πεντάγωνον, noun use of the neuter of the adjective πεντάγωνος ("five-angled"), from πέντε ("five") + -γωνος ("angled"). (Wiktionary)
- Late Latin pentagōnum, from Greek pentagōnon : penta-, penta- + -gōnon, -gon. (American Heritage® Dictionary of the English Language, Fourth Edition)
“In particular, the fact that the pentagon is exempt from inclusion on U.S. emissions makes our participation in this conference a joke.”
“He has majors, colonels and generals sending dispatches say that pulling out now would be a disaster while the pentagon is planning for a pull out for the 2006 elections.”
“Notice the resulting shape appears to be a regular pentagon, that is, a pentagon with all angles congruent and all sides the same length.”
“The next president won’t take office until next year, but the pentagon is already getting ready for the new administration.”
“April 26th, 2010 at 12: 53 pm tombaker says: if the pentagon is that concerned about oil supplies, is it really very likely they’ll irradiate vast reserves of it?”
“Joe, would you call the pentagon’s refusal to allow the taping of flag-draped coffins, “properly informing the public?””
“At the center of the pentagon was the public, which is important in creating a publicly-centered health system.”
“February 13th, 2010 at 10: 19 am dbadass says: in addition to believing nasa, nas and the pentagon are all in on the scam”
“Intersting Tact, he is not saying I think this, he is saying that many of his friends in the pentagon are also saying this. we have a mild soldier revolt in the ranks it looks like.”
“TODD: We called the pentagon about these newly released documents.”
These user-created lists contain the word ‘pentagon’.
words for shape
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having a certain number of angles
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Looking for tweets for pentagon.