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
Kurt Knutsson, FOXNews.com, 17 June 2026
But the second-scariest part of this opening scene comes shortly after the scene has already ended, when a split-second jump scare reveals what Katie looked like after Samara killed her.
—Brianna Zigler, Entertainment Weekly, 15 June 2026
Madisen Keavy, CBS News, 18 June 2026
For a split second at UCF’s second 7-on-7 tournament of the summer Monday night, Winter Park’s Cornelius Williams was the hero.
—Chris Hays, The Orlando Sentinel, 16 June 2026
See All Example Sentences for split-second
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Adjective
Scammers count on that split-second panic.
—Kurt Knutsson, FOXNews.com, 17 June 2026
But the second-scariest part of this opening scene comes shortly after the scene has already ended, when a split-second jump scare reveals what Katie looked like after Samara killed her.
—Brianna Zigler, Entertainment Weekly, 15 June 2026
Noun
In just split seconds, a speeding car going sideways comes to a crashing stop.
—Madisen Keavy, CBS News, 18 June 2026
For a split second at UCF’s second 7-on-7 tournament of the summer Monday night, Winter Park’s Cornelius Williams was the hero.
—Chris Hays, The Orlando Sentinel, 16 June 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 23 Jun. 2026.
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