In architecture, this is a wall that supports the weight of the elements above it (like the roof or upper floors). If you remove it, the structure could collapse.
A classic idiom for the person tasked with delivering a difficult message. bearer
The word typically refers to a person or thing that carries, holds, or brings something. Depending on the context, it carries different weights: 1. The Legal & Financial Sense In architecture, this is a wall that supports