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first world

noun, often capitalized F&W

Simple Definition of first world

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of first world

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

Origin of first world

after third world


First Known Use: 1967


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a timid, meek, or unassertive person

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