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English definition of “open sth out/up”

open sth out/up

phrasal verb with open     /ˈəʊ.pən/ US  /ˈoʊ-/ verb
to make a space larger or less closed in: We're going to open up our kitchen by knocking down a couple of walls.Enlarging and inflatingBecoming bigger
(Definition of open sth out/up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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