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grand opening
noun
Definition of grand opening
: a special celebration held to mark the opening of a new business or public place (such as a park or stadium)
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Word by Word Definitions
grandplay
: having more importance than others : foremost
: having higher rank than others bearing the same general designation
: inclusive, comprehensive
: grand piano
: a thousand dollars
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openingplay
: an act or instance of making or becoming open
: an act or instance of beginning : commencement
: a formal and usually public event by which something new is put officially into operation
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