1. to make a deadline, period, or duration longer than originally planned
We need to extend the time for project completion due to unforeseen circumstances.
Precisamos prorrogar o prazo para a conclusão do projeto devido a circunstâncias imprevistas.
2. to lengthen the duration of something that was scheduled to end
The teacher decided to extend the time allowed for the exam.
O professor decidiu estender o tempo permitido para o exame.