to confirm  / confirmation

When you confirm something, you show or say that it’s true or correct. In academic research, when something is confirmed, it means that some evidence has shown that it is actually true. Often people have hypotheses – ideas about why or how something happens – and research projects are carefully devised to test these hypotheses. If the results are positive, then the hypothesis is confirmed – of course, this doesn’t mean it’s absolutely true! In business, confirmation can also be used to mean that you make something more sure than it was before – for instance, you make a provisional booking when you’re not sure about the dates or numbers and then you confirm your booking when you know all the details and are ready to pay.

The results of her research were confirmed by later studies.

More than 100 people are reported to have been killed in the fighting but there has been no independent confirmation of this figure.

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