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English definition of “world”

world

noun
 
 
/wɜːld/
the world A1 the Earth and all the people, places, and things on it: Everest is the highest mountain in the world. She's travelled all over the world.Something, anything, nothing, and everythingThe Earth and outer space - general words
B1 [C] the people and things that are involved in a particular activity or subject: [usually singular] the entertainment world the world of politicsTopics and areas of interestGroups of people
the developing/industrialized/Western, etc world a particular area of the EarthContinents and regions of the worldCountry namesCountry and nation
the plant/animal, etc world plants/animals, etc as a groupGroups and collections of thingsVariety and mixtures
your world A2 your life and experiences: His whole world fell apart when she left.Lifestyles and their studyExisting and being
→ See also have the best of both worlds, not be the end of the world, the Old World, the outside world, the Third World, be on top of the world, do sb a/the world of good, be out of this world, think the world of sb, the whole world
(Definition of world noun from the Cambridge Learners Dictionary © Cambridge University Press)
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