backfillEnglishOxford Dictionary of Englishbackfill /ˈbakfɪl / ▸ verb [with object] refill (an excavated hole) with the material dug out of it: they backfill the hole to street level [no object] you'll need to backfill with excavated material. ▸ noun [mass noun] material used for backfilling: archaeologists are attempting to understand the origin of the backfill found there.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
