1. A conclusive win in a competition, conflict, or contest that clearly establishes superiority and leaves no doubt about the outcome
The team achieved a decisive victory in the championship final with a score of 5-1.
O time conquistou uma vitória decisiva na final do campeonato com placar de 5-1.
2. A military or political win that effectively ends a conflict or establishes clear dominance
The general's strategy resulted in a decisive victory over the opposing forces.
A estratégia do general resultou em uma vitória decisiva sobre as forças inimigas.