1. Behavior that is morally correct, law-abiding, and socially acceptable
The student received an award for good conduct throughout the school year.
O aluno recebeu um prêmio por boa conduta durante todo o ano letivo.
2. In legal contexts, respectable behavior that may result in sentence reduction or early release
He was released early from prison due to good conduct.
Ele foi libertado mais cedo da prisão devido à boa conduta.
3. Proper and honorable deportment in professional or institutional settings
The employee maintained good conduct and was promoted to manager.
O funcionário manteve boa conduta e foi promovido a gerente.