Word
Kana: げんばく Romaji: gembaku Level: N1

原爆

Meaning in English

atomic bomb

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Word context

What it means

What does 原爆 mean? It refers to an atomic bomb or nuclear weapon, a device that releases a massive amount of energy through nuclear reactions and is central to discussions of warfare, policy, and mass destruction.

Main meanings

  • primary meaning: atomic bomb
  • usage nuance: common in historical, political, and academic contexts when discussing nuclear weapons

How to use it

Used in formal writing, journalism, and academic contexts to discuss nuclear weapons and wartime events; appears in compound terms such as 原爆投下 or historical references to Hiroshima and Nagasaki; in casual speech, speakers may use broader terms for weapons when not focusing on the nuclear aspect.

Variants and close terms

  • 原子爆弾 gen-shi bakudan — atomic bomb
  • 核爆弾 kaku bakudan — nuclear bomb
  • 原爆投下 genbaku tōka — atomic bombing

Composition

  • 原: origin, base, source
  • 爆: explosion, blast
  • Together they form a word describing an explosion tied to an origin—specifically a nuclear/atomic explosion

Origin

The term entered Japanese vocabulary in the 20th century to name a weapon that derives its explosive power from nuclear reactions; it became prominent in wartime reporting and postwar discourse surrounding Hiroshima, Nagasaki, and nuclear policy.

Word class

noun (名詞)

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