split-sec·ond
ˈsplit-ˈse-kənd 
1
: occurring in a split second
a split-second decision
2
: extremely precise
split-second timing
Examples of split-second in a Sentence
Adjective
a day trader who is used to making split-second decisions
Noun
In a split second, it was all over.
a devastating accident can cause everything in your life to change in a split second
Recent Examples on the Web
Ronnie Li, USA Today, 26 Mar. 2026
Barbu’s three-mile push to the finish, wounded and running on pure adrenaline through mountain terrain, came down to a split-second decision.
—Samantha Agate, Charlotte Observer, 25 Mar. 2026
Ryan Gaydos, FOXNews.com, 5 Apr. 2026
The technical ability is really amazing, and their scope, their musical scope, is so broad because the Internet brings music from around the world to their ears in a split second, every single day.
—George Varga, San Diego Union-Tribune, 3 Apr. 2026
See All Example Sentences for split-second
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Adjective
As the crowd watches, a surf coach makes a split-second choice.
—Ronnie Li, USA Today, 26 Mar. 2026
Barbu’s three-mile push to the finish, wounded and running on pure adrenaline through mountain terrain, came down to a split-second decision.
—Samantha Agate, Charlotte Observer, 25 Mar. 2026
Noun
For a split second, Hendry was in control.
—Ryan Gaydos, FOXNews.com, 5 Apr. 2026
The technical ability is really amazing, and their scope, their musical scope, is so broad because the Internet brings music from around the world to their ears in a split second, every single day.
—George Varga, San Diego Union-Tribune, 3 Apr. 2026
See All Example Sentences for split-second
Cite this Entry
“Split-second.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/split-second. Accessed 7 Apr. 2026.
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