1. assistance or help that arrives by chance or luck, often at a critical moment
The fortunate aid of a passing stranger helped us fix our broken car.
A ajuda afortunada de um desconhecido que passava nos ajudou a consertar nosso carro quebrado.
2. unexpected support or relief from a difficult situation
Fortunate aid came when the foundation decided to fund our project.
A ajuda afortunada veio quando a fundação decidiu financiar nosso projeto.