backfill [noun]

Definition of backfill:

The material that has been used to refill an excavation.

Synonyms of backfill:

● Backfilling

● Filling

● Stowing

● Embankment

● Infilling

● Stope

● Packing


Opposite/Antonyms of backfill:

● Dig

● Excavate

● Consume

● Deplete

● Drain

● Exhaust


Sentence/Example of backfill:

The backfill is of the same sediment as around the gallery and the proboscis cut is straight.