The New Dictionary of Cultural Literacy, Third Edition. 2002.
Pentagon
An immense five-sided building in Virginia , just outside Washington, D.C ., that serves as headquarters for the Department of Defense . 1
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. 2
The Pentagon was severely damaged by the September 11 attacks . 3
The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.