1. To gradually weaken or reduce support for someone or something, typically through continuous criticism, loss of confidence, or deteriorating conditions
The scandal began to erode support for the government among voters.
O escândalo começou a minar o apoio ao governo entre os eleitores.
2. To cause a gradual decline in backing, endorsement, or allegiance
Constant delays eroded support for the construction project.
Os atrasos constantes erosionaram o apoio ao projeto de construção.