Walls are upright structures constructed to confine, divide, shield, or support an area
https://open.substack.com/pub/brendanpjs/p/the-power-of-color-making-use-of?r=5pri6u&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true
Walls are vertical frameworks built to enclose, divide, shield, or support a location.