The phrasal verb "backfill" is commonly used in both informal and formal contexts, although it tends to be more prevalent in professional settings, particularly in industries such as construction, excavation, data management, and human resources. In the construction industry, "backfill" refers to the process of refilling an excavated area with soil or other materials, such as after laying foundations or installing underground utilities. In a corporate or organizational context, "backfill" is often used to describe the action of filling a vacant position, usually on an interim basis. For example, if an employee is temporarily unavailable due to maternity leave or a long-term project, another employee might be designated to "backfill" the role. This phrasal verb implies both a literal sense of filling a space or gap and a metaphorical sense related to maintaining continuity within a structure or process. While its application is specific, "backfill" is a useful phrasal verb in contexts where tasks and responsibilities need to be reassigned to ensure uninterrupted operations.
B2
UpperIntermediate
1. To fill again a hole or space that has been previously dug, often using the same material that was removed.
After laying the pipes, the workers needed to backfill the trench to restore the ground to its original level.
The gardener decided to backfill the garden bed with the soil that was initially dug up.
2. To fill a vacancy, especially in a job, that has been created by the departure or the movement of someone.
The company plans to backfill the position of the project manager as soon as possible.
After the accountant retired, the firm had to quickly backfill the position to maintain daily operations.