- foundation (of building)
- bed (e.g. bedrock)
- substrate
Generated: This meaning refers to the solid base upon which a structure is built, essential for ensuring the stability and safety of the building.
The foundation of this building is very solid.
Generated: This usage refers to the solid rock layer beneath the surface soil or sediment, often used in geology and construction contexts.
The geologist found the bedrock, beneath which is solid rock.
Generated: This meaning indicates a layer that supports or provides a surface for other materials or organisms, often used in biology and materials science.
The plants are growing on this substrate.