IPA: /ˈklɪrˌstɔːri/
KK: /ˈklɪrˌstɔri/
A clearstory is a part of a building that has windows high up on the walls, allowing light to enter from above.
The church features a beautiful clearstory that fills the interior with natural light.
Clearstory → It is formed from "clear" (from Old English *cleare*, meaning free from darkness or obscurity) and "story" (from Latin *historia*, meaning a narrative or account). The word "clearstory" refers to a story or level of a building that is well-lit or free from obstruction, allowing light to enter.
Think of a space that is 'free from darkness' ('clear') and has a 'narrative' or level ('story') that allows light to shine through.