World war and World War I

World war noun - A war in which the major nations of the world are involved.

World War I and world war are semantically related. in great war topic. In some cases you can use "World War I" instead a noun phrase "World war".

World War I noun - A war between the allies (Russia, France, British Empire, Italy, United States, Japan, Rumania, Serbia, Belgium, Greece, Portugal, Montenegro) and the Central Powers (Germany, Austria-Hungary, Turkey, Bulgaria) from 1914 to 1918.

World war and World War I are semantically related. Sometimes you can replace phrase "World war" with "World War I", this phrases are similar.