first world

noun, often capitalized F&W

Definition of first world

: the highly developed industrialized nations often considered the westernized countries of the world

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first world problem

First World War

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The first known use of first world was in 1967

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More Definitions for first world

first world

noun

English Language Learners Definition of first world

: the countries of the world that have many industries and relatively few poor people : the rich nations of the world

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