Last Updated
：2025/11/20
ground zero
IPA(Pronunciation)
Noun
countable
uncountable
broadly
figuratively
Japanese Meaning
（元々の意味）原子爆弾が空中で爆発する際、その下に位置する陸地や水面の一点。 / （現在の意味）爆発地点とされる、陸地または水面上のその場所。
Sense（1）
（ plural ）
Quizzes for review
Originally, the point on the land or water surface below which a nuclear bomb detonates in the air; now also the point on such a surface at or above the detonation.
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ground zero
They determined ground zero as the point on the surface directly beneath where the nuclear bomb detonated in the air.
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They determined ground zero as the point on the surface directly beneath where the nuclear bomb detonated in the air.
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