Skip to main content
World War 1

World War 1

12 3.0
A global war fought mainly in Europe from 1914 to 1918 between the Allies and Central Powers
  • proper noun
  • /wɜrld wɔr wʌn/
translation icon : Primera Guerra Mundial
  • Many nations were involved in World War I, which lasted from 1914 to 1918.
  • World War 1 memorial

When you think about World War One, Germany was defeated.

Autoplay Next

Examples

  • When you think about World War One, Germany was defeated.

  • Following World War I he became one of the leaders of the Weimar Republic and was one of the framers of its democratic constitution.

  • What was World War One, and why does it matter?

  • Now if you remember, World War One had just ended.

  • How many people died in World War I?

  • I was a captain in Battery D in World War I, and, well, that was the center of the whole war effort for me.

  • And we'll see that the great pandemic after World War One had four major waves.

  • The classical gold standard ended with the outbreak of World War I.

    Academic text (2018)
  • Hungary was the only nation, apart from Russia, to have a Communist government after World War I.

    Academic text (2000)
  • After World War I, events had moved rapidly as the Turkish Empire disintegrated.

    Academic text (2018)

Synonyms

First World War
vsWorld War 1
24 2.8

A large war in Europe from 1914 to 1918 between many countries, also called World War I

is the more general global label without ordinal emphasis
Great War
vsWorld War 1
14 4.2

A war in Europe from 1914 to 1918 between the Allies and Central Powers

is the broader global term rather than the earlier name
World War I
vsWorld War 1
2 3.0

A large war that many countries fought from 1914 to 1918

focuses on it as a global war mainly fought in Europe

Surface Forms

Morphology

world + war + one

The expression is compositionally built from 'world' (global) + 'war' (armed conflict) + 'one' (first), so a B1 learner who knows those constituents can infer it refers to the first global-scale war even without knowing specific dates or belligerents. The 'World War + ordinal' pattern is common cross-linguistically (e.g., Primera Guerra Mundial), which further supports immediate comprehensibility.

Etymology

World War 1 comes from a simple image: it was a war that pulled in many countries from around the world, and the number 1 shows it was the 'first' war on that scale. So today World War 1 means the big global conflict fought from 1914 to 1918.