1. A judicial or administrative ruling that declares something null and void, effectively canceling or invalidating a previous decision, agreement, or legal act
The court issued an annulling decision that voided the original contract.
O tribunal proferiu uma decisão de anulação que invalidou o contrato original.
2. A formal judgment in legal proceedings that nullifies prior actions or determinations
The annulling decision reversed the previous ruling on the case.
A decisão de anulação reverteu a sentença anterior sobre o caso.