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First World

American  

noun

  1. the major industrialized non-Communist nations, including those in Western Europe, the United States, Canada, and Japan.

Etymology

Origin of First World

First recorded in 1970–75

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.