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English definition of “posthaste”


adverb     /ˌpəʊstˈheɪst/ US  /ˌpoʊst-/ old-fashioned formal
as fast as possible: They travelled posthaste to Rome to collect the award.Fast and rapidShort in time
(Definition of posthaste adverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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