pentagon
1. [ noun ] (government) a government building with five sides that serves as the headquarters of the United States Department of Defense
Related terms: building government_building
2. [ noun ] (military,government) the United States military establishment
Related terms: bureaucracy military military
3. [ noun ] (mathematics,geometry) a five-sided polygon
Related terms: polygon
Similar spelling:   pentagonal
  pentagram
  peanuts
  pentastomid
  pentazocine
  pentacle