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English definition of “assure”

assure

verb [T] (MAKE CERTAIN)    /əˈʃɔːr/ US  /-ˈʃʊr/
C1 to cause something to be certain : The play's popularity has been assured by the critics ' rave reviews .CertaintyConfidence and self-assurance
(Definition of assure verb (MAKE CERTAIN) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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