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| Date: | 1200-1300 |
| Language: | Old French |
| Origin: | confirmer, from Latin confirmare, from com- ( COM-) + firmare 'to make firm' |
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con‧firm S2 W2
[transitive]
[transitive]1 to show that something is definitely true, especially by providing more proof : 
New evidence has confirmed the first witness's story.To confirm my diagnosis I need to do some tests.
New evidence has confirmed the first witness's story.To confirm my diagnosis I need to do some tests.2 to say that something is definitely true : The President refused to confirm the rumor.
The President refused to confirm the rumor. confirm that Walsh confirmed that the money had been paid.
Walsh confirmed that the money had been paid. confirm what My brother will confirm what I have told you.
My brother will confirm what I have told you.3 to tell someone that a possible arrangement, date, or situation is now definite or official : Could you confirm the dates we discussed? Smith was confirmed as the club's new manager yesterday.
Could you confirm the dates we discussed?Smith was confirmed as the club's new manager yesterday. confirm a booking/reservation/appointment I am writing to confirm a booking for a single room for the night of 6 June.
I am writing to confirm a booking for a single room for the night of 6 June.4 to make you believe that your idea or feeling is right
confirm you in your belief/opinion/view etc (that) (=make you believe something more strongly) The expression on his face confirmed me in my suspicions.
The expression on his face confirmed me in my suspicions.
