backlog

1 of 2

noun

back·​log ˈbak-ˌlȯg How to pronounce backlog (audio)
-ˌläg
Synonyms of backlognext
1
: a large log at the back of a hearth fire
2
: an accumulation of tasks unperformed or materials not processed
a backlog of court cases

backlog

2 of 2

verb

backlogged; backlogging; backlogs
: accumulate

Examples of backlog in a Sentence

Noun We have a huge backlog of orders to be filled.
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.
Noun
Analysts estimate that clearing this existing backlog will take another 10 to 15 days. — CNBC, 28 Aug. 2026 In the cold open of the first-season finale, the characters go through their backlog of snail mail, rushing through a series of updates on the show’s lingering story lines in imitation of a clip-show episode. — Jackson McHenry, Vulture, 27 Aug. 2026
Verb
Many Transportation Security Administration officers have gone unpaid, creating massive security line backlogs at a few major airports, including in Houston. — Dallas Morning News, 9 Mar. 2026 His court date was scheduled for 2027, a date far in the future because of the nation’s immigration courts backlog. — Lawrence Mower, Miami Herald, 26 Aug. 2025 See All Example Sentences for backlog

Word History

First Known Use

Noun

1684, in the meaning defined at sense 1

Verb

1963, in the meaning defined above

Time Traveler
The first known use of backlog was in 1684

Rhymes for backlog

See All Rhymes for backlog

Browse Nearby Words

back-load
backlog
back loop jump
See all Nearby Words

Cite this Entry

“Backlog.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/backlog. Accessed 1 Sep. 2026.

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Kids Definition

backlog

noun
back·​log
-ˌlȯg, 
-ˌläg
1
: a large log at the back of a fire in a fireplace
2
: an accumulation of tasks that have not been finished

More from Merriam-Webster on backlog

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