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English definition of “sphere”

sphere

noun [C] uk   /sfɪər/ us    /sfɪr/

sphere noun [C] (ROUND OBJECT)

an object shaped like a round ball: Doctors have replaced the top of his hip bone with a metal sphere.

sphere noun [C] (AREA)

C1 a subject or area of knowledge, work, etc.: the political sphere exchanges with other countries, particularly in cultural, scientific, and economic spheres
(Definition of sphere from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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