rubble
//ˈrʌb.əl//
Noun
rubbleSingular
rubblePlural
1
Broken fragments of stone, brick, concrete, or other building materials, especially those resulting from the destruction or demolition of structures.
The rescue team searched through the rubble for survivors.
2
Rough, irregular pieces of stone used in construction, particularly as fill material in walls.
The builders used rubble to fill the gaps between the outer walls.