1. to confirm or give support to (a statement, theory, or finding) by providing additional evidence
The witness's testimony corroborates the defendant's alibi.
O depoimento da testemunha corrobora o álibi do réu.
2. to make more certain by additional proof or evidence
The research findings corroborate previous studies on climate change.
Os resultados da pesquisa corroboram estudos anteriores sobre mudanças climáticas.