1establish the truth or correctness of (something previously believed or suspected to be the case):if these fears are confirmed, the outlook for the economy will be dire [with clause]:the report confirms that a diet rich in vitamin C can help to prevent cataracts
[reporting verb] state with assurance that a report or fact is true: [with clause]:he confirmed that the general was in the hands of the rebels [with direct speech]:‘It is indeed proper coffee,’ I confirmed
(confirm someone in) reinforce someone in (an opinion or feeling):he fuelled his misogyny by cultivating women who confirmed him in this view
make (a provisional arrangement or appointment) definite:Mr Baker’s assistant telephoned to confirm his appointment with the chairman
make (a decision or an agreement) formally valid:the organization has confirmed the appointment of Mr Collins as managing director
declare (someone) formally to be appointed to a particular post:he was confirmed as the new EC peace envoy
2administer the religious rite of confirmation to:he had been baptized and confirmed