noun
an act or instance of making or becoming open
verb
the action of beginning or starting something
adjective
allowing access, passage, or a view through an empty space
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The grand opening of the new art gallery was attended by many prominent figures in the art world.
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Are you going to the movie theater's opening tonight?
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I heard the club's opening last night was lit!
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The opening of her heart to him was a turning point in their relationship.