
Aperture
Light Control
In general context, 'aperture' refers to how much light or substance can pass. Larger apertures mean more light.
The room brightened as he opened the aperture of the window.
Functional Diversity
'Aperture' is not limited to light; it can refer to any substance moving through an opening.
The aperture of the pipe allowed water to flow freely.
Specificity
An aperture is specific and often designed for a precise function or effect.
The device's aperture was calibrated for optimal airflow.