backlog

1 of 2

noun

back·​log ˈbak-ˌlȯg 

-ˌläg

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

Noun

The Department of Veterans Affairs cut average disability claims processing time from 141 days to 81, a 42% reduction, and pushed its backlog below 100,000 for the first time since 2020. — Billy Biggs, Forbes.com, 30 Oct. 2026

Sustaining bookings and converting the backlog into recurring revenue will be important to watch. — Isabella Gao, CNBC, 30 Oct. 2026

Verb

For instance, applicants from countries such as China and India (registration required) may face lengthier waits due to backlog risks and high demand. — Jill Jones, Forbes.com, 16 Oct. 2026

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

Word History

First Known Use

Noun

1684, in the meaning defined at sense 1

Verb

1963, in the meaning defined above

Rhymes for backlog

• agog
• bulldog
• bullfrog
• eclogue
• eggnog
• groundhog
• hedgehog
• leapfrog
• prolog
• sheepdog
• watchdog
• analog

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