Definition of war to end all wars in English:

war to end all wars

A war, especially World War I, regarded as making subsequent wars unnecessary.
More example sentences
  • It's most ironic in 2001 looking back that this was what they believed: that the First World War was the war to end all wars.
  • The First World War was dubbed the war to end all wars.
  • It was called the Great War, the war to end all wars.
See parent entry: war

Definition of war to end all wars in:

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Word of the day internecine
Pronunciation: ˌɪntəˈniːsʌɪn
adjective
destructive to both sides in a conflict