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English definition of “balloon”

balloon

verb [I]     /bəˈluːn/
to get bigger and rounder: I ballooned when I was pregnant with my second baby.Becoming biggerEnlarging and inflating to quickly increase in size, weight, or importance: The rumours soon ballooned into a full-blown scandal.Enlarging and inflatingBecoming biggerIncreasing and intensifying
(Definition of balloon verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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