1. Deliberate and intentional assistance provided to someone, often with full knowledge of the consequences or purposes involved
The accomplice was charged with willful aid to the fugitive.
O cúmplice foi acusado de auxílio intencional ao fugitivo.
2. In legal contexts, knowingly and voluntarily helping someone commit an unlawful act
She was convicted of willful aid in the commission of fraud.
Ela foi condenada por auxílio intencional na prática de fraude.