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backfill
[ bak-fil ]
/ ˈbækˌfɪl /
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noun
material used for refilling an excavation.
verb (used with object)
to refill (an excavation).
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Which of the following nouns has an irregular plural form?
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use backfill in a sentence
Soak the roots after planting to eliminate air pockets and backfill with soil as needed.
British Dictionary definitions for backfill
backfill
/ (ˈbækˌfɪl) /
verb
(tr) to refill an excavated trench, esp (in archaeology) at the end of an investigation
noun
the soil used to do this
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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