1. To perform actions with careful attention, effort, and thoroughness; to work with industriousness and dedication
The team acted diligently to complete the project on time.
A equipe agiu diligentemente para concluir o projeto no prazo.
2. To conduct oneself with persistent and conscientious effort in accomplishing a task
She acted diligently in her studies to achieve excellent grades.
Ela agiu diligentemente nos estudos para obter excelentes notas.