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English definition of “substantially”

substantially

adverb uk   /səbˈstæn.ʃəl.i/ us  

substantially adverb (LARGE)

C1 to a large degree: The new rules will substantially change how we do things.Very important or urgent

substantially adverb (GENERAL)

generally: This model has a few extra fittings, but the two cars are substantially the same.General
(Definition of substantially from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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