backfill

verb

back·​fill ˈbak-ˌfil How to pronounce backfill (audio)
backfilled; backfilling; backfills

transitive + intransitive

: to refill (something, such as an excavation) usually with excavated material
backfill a trench
backfill noun

Examples of backfill in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Although Moscow's ground forces are being chewed up in the grinding war in Ukraine's east, Russia has wound up its defense industry to backfill its constant equipment losses and regular strikes across Ukraine. Ellie Cook — Reporting From Prague, Czech Republic, MSNBC Newsweek, 3 Sep. 2025 New Loons striker Momo Dieng, who the club brought in from Hartford Athletic in the USL Championship to backfill for Oluwaseyi, made his debut in the 77th minute. Andy Greder, Twin Cities, 31 Aug. 2025 Now, several states are trying to backfill gay and questioning and trans crisis support. Jade Walker, CNN Money, 22 Aug. 2025 The California Air Resources Board and five other agencies recommended the state backfill the $7,500 federal tax credit for electric vehicles that is currently set to expire in late September. Bloomberg, Mercury News, 20 Aug. 2025 Then, backfill the lower, easier-to-fill position with a person with potential and ambition; rinse and repeat. Expert Panel®, Forbes.com, 13 Aug. 2025 As the uninsured rate rises in non-expansion states and the budget law’s Medicaid cuts loom, lawmakers say state funds will not backfill the loss of federal dollars, including in states that have refused to expand Medicaid. Daniel Chang, Miami Herald, 11 Aug. 2025 When someone leaves — a therapist or a supervisor, for example — Pat’s Place often chooses not to backfill. Ryan Oehrli august 5, Charlotte Observer, 5 Aug. 2025

Word History

First Known Use

1874, in the meaning defined above

Time Traveler
The first known use of backfill was in 1874

Browse Nearby Words

Cite this Entry

“Backfill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/backfill. Accessed 8 Sep. 2025.

Last Updated: - Updated example sentences
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