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.
Separately, the Pentagon last month proposed $200 billion for the war effort and to backfill munitions and supplies. Lisa Mascaro, Fortune, 3 Apr. 2026 But no state can completely backfill all of the funds and resources the federal government has cut — nor can mutual aid, Boldon said. Maddie Mullikin, Twin Cities, 3 Apr. 2026 Separately, the Pentagon last month proposed $200 billion for the war effort and to backfill munitions and supplies. ABC News, 2 Apr. 2026 The parent company are in active discussions with executives to backfill the rotating suite. Anthony D'alessandro, Deadline, 23 Mar. 2026 Top receiver Omarion Miller left — one of three of Colorado’s four leading receivers who won’t return — but the Buffaloes added Danny Scudero (San Jose State), Kam Perry (Miami of Ohio) and DeAndre Moore (Texas) to backfill. David Ubben, New York Times, 11 Mar. 2026 Proponents of the cuts said the state’s budget committee would backfill any important programs during the remainder of the session. Idaho Statesman, 7 Mar. 2026 The shortages have been so acutely felt that the Pentagon last year requested nearly $30 billion from Congress to backfill its high-end missiles and interceptors, but that request was only partially fulfilled in the Defense Department’s budget passed last month, The Washington Post reported. Ellen Mitchell, The Hill, 4 Mar. 2026 Contract cities cannot be expected to backfill broader County budget challenges through opaque overhead charges that grow faster than the cost of actual policing. Rajiv Bhateja, Mercury News, 4 Mar. 2026

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 9 Apr. 2026.

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