Définitions
1.VerbTo refill a hole with the material dug out of it.
2.VerbTo refill an excavation unit to restore the former ground surface and/or to preserve the unit and make it recognizable as having been excavated.
3.VerbTo provide reserve support.
4.VerbTo replenish or restock due to attrition or loss."The company backfilled Joe's position after he was terminated."
5.VerbTo enter an online game that's already in progress, replacing a player who left early.
6.NounThe material that has been used to refill an excavation.
7.NounReserve support personnel.
8.NounThat which backfills; a replacement.
9.NounMaterial in a story set earlier in the past, providing history or context for the current action.