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English definition of “confirm”

confirm

verb [T]  /kənˈfɜrm/ us  

confirm verb [T] (MAKE PLANS)

to make an arrangement, plan, or meeting certain or fixed: The hotel has confirmed our reservation. [+ that clause] Seventy people have confirmed that they will attend the conference.

confirm verb [T] (APPROVE)

to approve someone or something officially by formal agreement: His appointment has not been confirmed by the Senate.

confirm verb [T] (PROVE TRUE)

to prove or state the truth of something that was previously not completely certain: [+ that clause] Health officials confirmed that there’s a flu epidemic underway.

confirm verb [T] (RELIGION)

in some Christian religions, to formally accept someone as a member
(Definition of confirm from the Cambridge Academic Content Dictionary © Cambridge University Press)
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