ground zero

English Thesaurus

1. the point of detonation (or above or below) of a nuclear weapon (noun.location)

hypernym	:	point,
definition	:	the precise location of something; a spatially limited location (noun.location)

2. the site of the World Trade Center before it was destroyed (noun.location)

instance hypernym	:	land site, site,
definition	:	the piece of land on which something is located (or is to be located) (noun.location)

part meronym	:	greater new york, new york, new york city,
definition	:	the largest city in New York State and in the United States; located in southeastern New York at the mouth of the Hudson river; a major financial and cultural center (noun.location)

3. the target of a projectile (as a bomb or missile) (noun.location)

hypernym	:	target, target area,
definition	:	the location of the target that is to be hit (noun.location)