| Subject | English | Spanish |
| tech. | countdown-down ratio | relación de la cuenta regresiva |
| tech. | countdown-down ratio | relación de conteo |
| tech. | countdown-drum-pointer altimeter | altímetro analógico y digital indicador |
| tech. | countdown-pointer | contador-indicador |
| tech. | countdown the crosswind | contrarrestar el viento de costado |
| tech. | countdown the drift | corregir la deriva |
| comp., MS | Session Countdown | Cuenta regresiva de sesión (A feature on the General tab of the User Settings tool that allows the administrator to display the session countdown interface to alert users of how much time is left before the end of their sessions) |