first world

noun, often capitalized F&W

Definition of first world

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

Origin and Etymology of first world

after third world


First Known Use: 1967


FIRST WORLD Defined for English Language Learners

first world

noun, often capitalized F&W

Definition of first world for English Language Learners

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

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