rubble /ˈɹʌb.əl/noun 3verb 1forms 3 noun3 •The broken remains of an object, usually rock or masonry. •A mass or stratum of fragments of rock lying under the alluvium and derived from the neighbouring rock.The overlying beds are composed of such calcareous rubble and flints, rudely stratified — 1855 •[in the plural] (dialect, UK) The whole of the bran of wheat before it is sorted into pollard, bran, etc. verb1 •To break down into rubble. formsrubbled · rubbling · rubbles