The sub-station is responsible for distributing electricity to the surrounding areas.

There are several sub-stations in the city.

The sub-judges are responsible for assisting the main judge in the courtroom.

I live in a sub-apartment within a larger apartment complex.

There are several sub-apartments available for rent in the building.

The display on the new smartphone has over 2 million sub-pixels.

The image resolution is enhanced by using sub-pixel rendering.

The image quality is enhanced by using sub-pixel rendering.

The sub-optimality of the current system is hindering our progress.

There are several sub-optimalities in the current system.