ground zero

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the target of a projectile (as a bomb or missile)
• Hypernyms:
target, target area
2. the site of the World Trade Center before it was destroyed
• Instance Hypernyms:
site, land site
• Part Holonyms:
New York, New York City, Greater New York
3. the point of detonation (or above or below) of a nuclear weapon
• Hypernyms:
point