first world
noun,
often capitalized F&W
Definition of first world
: the highly developed industrialized nations often considered the westernized countries of the world
From the M-W Editors
Origin and Etymology of first world
after third world
First Known Use: 1967
FIRST WORLD Defined for English Language Learners
first world
noun
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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