pentagon

English Thesaurus

1. a government building with five sides that serves as the headquarters of the United States Department of Defense (noun.artifact)

instance hypernym	:	government building,
definition	:	a building that houses a branch of government (noun.artifact)

2. the United States military establishment (noun.group)

hypernym	:	bureaucracy, bureaucratism,
definition	:	nonelective government officials (noun.group)

domain category	:	armed forces, armed services, military, military machine, war machine,
definition	:	the military forces of a nation (noun.group)

3. a five-sided polygon (noun.shape)

hypernym	:	polygon, polygonal shape,
definition	:	a closed plane figure bounded by straight sides (noun.shape)