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English definition of “expand”

expand

verb [I or T]     /ɪkˈspænd/
B2 to increase in size, number, or importance, or to make something increase in this way: The air in the balloon expands when heated. They expanded their retail operations during the 1980s.Enlarging and inflatingBecoming biggerIncreasing and intensifying
(Definition of expand verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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