大だい戦せん争そう

noun

major war; great war; world war

Refers to a large-scale war, often used for world wars or conflicts of global significance. Can be used in historical or speculative contexts.

• 第だい一いち次じ世せ界かい大たい戦せんは、当とう時じ「大だい戦せん争そう」と呼よばれた。

  World War I was called the 'Great War' at the time.

• もし第だい三さん次じ大だい戦せん争そうが起おこれば、人じん類るいは滅ほろびるだろう。

  If a third world war breaks out, humanity will probably perish.