split-sec·ond
ˈsplit-ˈse-kənd 
1
: occurring in a split second
a split-second decision
2
: extremely precise
split-second timing
Synonyms
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
Ryan Gaydos, Fox News, 5 Feb. 2025
Today’s top stories (Christina House / Los Angeles Times)
Our ongoing L.A. fires coverage
The escape from the Palisades was characterized by split-second decision-making and confusing responses.
—Ryan Fonseca, Los Angeles Times, 3 Feb. 2025
Fox News Staff, Fox News, 8 Feb. 2025
For a split second, or maybe a couple of seconds, or maybe a minute, or five.
—Corey Seymour, Vogue, 6 Feb. 2025
See all Example Sentences for split-second 
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Adjective
Gambling is fun for the split-second rush, but getting in over your head is a serious problem that scores of Americans deal with on a daily basis.
—Ryan Gaydos, Fox News, 5 Feb. 2025
Today’s top stories (Christina House / Los Angeles Times)
Our ongoing L.A. fires coverage
The escape from the Palisades was characterized by split-second decision-making and confusing responses.
—Ryan Fonseca, Los Angeles Times, 3 Feb. 2025
Noun
For a commander on the battlefield, a split second of decision advantage can determine the difference between victory and defeat.
—Fox News Staff, Fox News, 8 Feb. 2025
For a split second, or maybe a couple of seconds, or maybe a minute, or five.
—Corey Seymour, Vogue, 6 Feb. 2025
See all Example Sentences for split-second
Dictionary Entries Near split-second
Cite this Entry
“Split-second.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/split-second. Accessed 21 Feb. 2025.
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