Airflow (noun)

1. The movement of air.
2. The flow of air through a space or system.

Origin:

Early 20th century: blend of air and flow.

Examples:

1. The airflow in the room is important for maintaining comfortable temperature.
2. The airflow in the engine must be maintained to ensure proper performance.
3. The airflow can be controlled by opening or closing vents.
4. The airflow is affected by many factors such as wind speed, temperature, and humidity.
5. The airflow in a wind tunnel is used to study the aerodynamics of objects.