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/ˈlaɪ̯tˌwɛl/ · noun
(architecture) An open shaft that transmits light from above into a staircase or an inner room..
In it a covered porch and vestibule were backed by a vertical shaft or "light-well," which served as a great window both to the vestibule itself, and to the corridors, staircases, and landings that connected it with the upper stories.
The sliding glass door with its rolled-up blinds looked onto a lightwell, composed of a glass platform overhead and carefully angled mirrors that were reflecting a confusing cold light into the bedroom.
Use lightwell when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lightwell means (architecture) An open shaft that transmits light from above into a staircase or an inner room..
Common synonyms include airshaft, air well, ventilation shaft, vent shaft.
The opposite depends on the specific sense.
In it a covered porch and vestibule were backed by a vertical shaft or "light-well," which served as a great window both to the vestibule itself, and to the corridors, staircases, and landings that connected it with the upper stories.
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