split-second

1 of 2

adjective

split-sec·​ond ˈsplit-ˈse-kənd How to pronounce split-second (audio)
1
: occurring in a split second
a split-second decision
2
: extremely precise
split-second timing

split second

2 of 2

noun

: a fractional part of a second : flash

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
Adjective
This summer, the futuristic, proprietary quartz TPT (Thin Ply Technology) case from Richard Mille is getting a refresh while housing a lightweight split-second chronograph movement. Carol Besler, Robb Report, 21 June 2024 In the footage shown over and over on TV, a curtain of water mercifully blocked the fatal split-second from the camera’s view. Christopher Goffard, Los Angeles Times, 12 June 2024
Noun
Police officers often have to make difficult choices that may have profound consequences, sometimes in a split second. Steve Chapman, Chicago Tribune, 6 June 2024 In that split second, Violet knows exactly what is going on here. Maggie Fremont, Vulture, 16 May 2024 See all Example Sentences for split-second 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'split-second.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

Adjective

1944, in the meaning defined at sense 1

Noun

1912, in the meaning defined above

Time Traveler
The first known use of split-second was in 1912

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 1 Jul. 2024.

Kids Definition

split second

1 of 2 noun
: a small fraction of a second : flash

split-second

2 of 2 adjective
1
: occurring in a split second
a split-second decision
2
: extremely precise
split-second timing
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!