noun
Rubble, wreckage, scattered remains of something destroyed.
His neighbors were still ripping out debris. But Mr. Ryan, a retired bricklayer who built his house by hand 30 years ago only to lose most of it to Hurricane Sandy, was already hard at work rebuilding.
But signalman Bridges was never to answer driver Gimbert's desperate question. A deafening, massive blast blew the wagon to shreds, the 44 high-explosive bombs exploding like simultaneous hits from the aircraft they should have been dropped from. The station was instantly reduced to bits of debris, and the line to a huge crater.
Litter and discarded refuse.
[The researchers] noticed many of their pieces of [plastic marine] debris sported surface pits around two microns across. Such pits are about the size of a bacterial cell. Closer examination showed that some of these pits did, indeed, contain bacteria, […].
The ruins of a broken-down structure.
Large rock fragments left by a melting glacier etc.