1. to demonstrate or establish that something or someone is dependable, trustworthy, and consistently performs as expected
The new product needs to prove reliability in real-world conditions before market launch.
O novo produto precisa comprovar confiabilidade em condições reais antes do lançamento no mercado.
2. to provide evidence or testing that confirms the dependability of a system, process, or person
Engineers conducted extensive tests to prove reliability of the aircraft's safety systems.
Os engenheiros conduziram testes extensivos para comprovar a confiabilidade dos sistemas de segurança da aeronave.