1. The target of a projectile (as a bomb or missile) 
2. The site of the World Trade Center before it was destroyed 
3. 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, Greater New York, New York, New York City, NYC

Encyclopedia: Ground zero

• law enforcement
• law enforcement agency
• law firm
• law merchant
• law of action and reaction
• law of Archimedes
• law of areas
• law of averages
• law of chemical equilibrium
• law of closure
• law of common fate
• law of conservation of energy
• law of conservation of mass
• law of conservation of matter
• law of constant proportion
• law of continuation
• law of definite proportions
• law of diminishing returns
• law of effect
• law of equal areas
• law of equivalent proportions
• law of gravitation
• law of independent assortment
• law of large numbers
• law of mass action