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Noun: Ground Zero
  1. The site of the World Trade Center before it was destroyed
    - World Trade Center site
Noun: ground zero  grawnd zeer-ow
  1. The target of a projectile (as a bomb or missile)
     
  2. The point of detonation (or above or below) of a nuclear weapon

Type of: land site, point, site, target, target area

Part of: Big Apple [informal], Greater New York, New York, New York City, NYC

Encyclopedia: Ground Zero

Ground zero