Definition of ground zero in English:

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ground zero


[in singular]
1The point on the earth’s surface directly above or below an exploding nuclear bomb.
Example sentences
  • In fact, no bomb fragments were ever found, and no one could be sure what car or truck exploded, yet ground zero was established… with no car.
  • The natural reluctance of rescuers to get close enough to ground zero after a nuclear detonation to be much use to survivors is another.
  • The other day I stuck my camera out of a car window and the sound I got was like ground zero at a nuclear blast!
1.1 (Ground Zero) The site of the former World Trade Center in New York City in the wake of the terrorist attacks of September 11, 2001.
1.2A site of devastation, disaster, or violent attack: the pictures from Indonesia’s ground zero are beyond description
More example sentences
  • In Indonesia's Aceh province, fast emerging as the quake's ground zero, survivors scrabbled for food among mud and corpses.
  • But Madrid's ground zero panicked the minds and awoke the demagogues, ready to invert responsibility.
  • The people at London's ground zero were sounding like the Spanish after their train bombings.
2A starting point or base for some activity: if you’re starting at ground zero in terms of knowledge, go to the library
More example sentences
  • And then it was almost worse because then we went really down to ground zero in terms of our own emotions because we just could not believe that he would survive.
  • ‘We started from ground zero,’ Wilson says in his typical American - speak.
  • We got in there with a pen and a pad and started at ground zero.

For editors and proofreaders

Syllabification: ground ze·ro

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