1. A serious, solemn, or important statement, often with significant consequences or implications
The witness made a grave statement about the defendant's whereabouts.
A testemunha fez uma declaração grave sobre o paradeiro do réu.
2. A statement that conveys worry, concern, or urgent matter
The doctor delivered a grave statement regarding the patient's condition.
O médico fez uma declaração grave sobre a condição do paciente.