Final answer:
The term for a sunken area that provides access, air, and light to a basement door or window is Areaway.
Step-by-step explanation:
The term for a sunken area that provides access, air, and light to a basement door or window is Areaway. An Areaway is a space that is below ground level and is typically enclosed by walls or steps leading to an entrance. It is designed to allow natural light and ventilation into the basement area while providing a means of access.