different between backfill vs backfall

English

Alternative forms

• back-fill

Etymology

From back +? fill.

Verb

backfill (third-person singular simple present backfills, present participle backfilling, simple past and past participle backfilled)

1. To refill a hole with the material dug out of it.
2. (archaeology) To refill an excavation unit to restore the former ground surface and/or to preserve the unit and make it recognizable as having been excavated.
   • We backfilled the cistern with pea gravel to discourage its use as a refuse container.
3. (US) To provide reserve support.
4. (US) To replenish or restock due to attrition or loss.

   The company backfilled Joe's position after he was terminated.

Noun

backfill (countable and uncountable, plural backfills)

1. The material that has been used to refill an excavation.
2. (US) Reserve support personnel.
3. (US) That which backfills; a replacement.
4. (literature) Material in a story set earlier in the past, providing history or context for the current action.

Derived terms

• backfill bias

English

Etymology

back +? fall

Noun

backfall (plural backfalls)

1. (wrestling) A fall or throw on the back.
2. (music) A lever in the coupler of an organ.

Anagrams

• fall back, fall-back, fallback