1. A space of time or distance that occurs with consistent, predictable frequency
The buses arrive at regular intervals throughout the day.
Os ônibus chegam em intervalos regulares durante o dia.
2. In mathematics and music, spacing or gaps that maintain equal measurement
The notes were played at regular intervals.
As notas foram tocadas em intervalos regulares.
3. A recurring break or pause in a routine or activity
They took breaks at regular intervals during the work shift.
Eles fizeram pausas em intervalos regulares durante o turno de trabalho.