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Discover LudwigThe phrase "second world" is correct and usable in written English
It can be used to refer to countries that were aligned with the Soviet Union during the Cold War, typically those with socialist economies.
Example: "During the Cold War, the second world consisted of nations that were part of the Eastern Bloc."
Alternatives: "Eastern Bloc" or "socialist countries."
Dictionary
second world
proper noun
Those countries aligned with the East during the Cold War, particularly in contrast to those aligned with the West (First World).
Exact(54)
The First World War.
"The Second World War is still here".
THE SECOND WORLD WAR, by Antony Beevor.
Freemasons caused the second world war.
In the Second World War, everybody fought.
The Second World War rescued the base.
Similar(6)
Second World-Wide Failure Exercise.
Or Second World War memorabilia.
Her career began just before the Second World War.
The couple met before the Second World War.
A history of the Second World War siege.
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CEO of Professional Science Editing for Scientists @ prosciediting.com