To confirm is to show that something is true or correct, often by checking facts or getting approval. It can also mean to make something stronger or more certain.
From Latin 'confirmāre', meaning 'to strengthen, to establish', from 'com-' and 'firmus' ('strong, firm'). The idea of making something firm became the modern sense of proving or ratifying it.
When you confirm plans or facts, you’re turning 'probably' into 'solid'. Science itself runs on this idea: results don’t become trusted knowledge until many tests confirm them independently.
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