stopwatch
noun
stop·watch
ˈstäp-ˌwäch 
: a watch with a hand or a digital display that can be started and stopped at will for exact timing (as of a race)
Examples of stopwatch in a Sentence
Recent Examples on the Web
At that point, the scientists aboard our plane pushed a button on a stopwatch.
—
Literary Hub, 24 July 2025
Suddenly Bob Carlton, the engine controller, is running the entire program with a stopwatch.
—Jim Clash, Forbes.com, 14 July 2025
As production ramped up, process engineers, who sometimes patrolled the assembly line with stopwatches, looked for bottlenecks and rejiggered the assembly line.
—Verne Kopytoff, Fortune, 5 July 2025
The tools include a Glyph mirror, digital clock, stopwatch, battery indicator, and solar clock, while the games include Spin the Bottle and Magic 8 Ball.
—Eric Zeman, PC Magazine, 1 July 2025
See All Example Sentences for stopwatch
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Literary Hub, 24 July 2025
Suddenly Bob Carlton, the engine controller, is running the entire program with a stopwatch.
—Jim Clash, Forbes.com, 14 July 2025
As production ramped up, process engineers, who sometimes patrolled the assembly line with stopwatches, looked for bottlenecks and rejiggered the assembly line.
—Verne Kopytoff, Fortune, 5 July 2025
The tools include a Glyph mirror, digital clock, stopwatch, battery indicator, and solar clock, while the games include Spin the Bottle and Magic 8 Ball.
—Eric Zeman, PC Magazine, 1 July 2025
See All Example Sentences for stopwatch
Cite this Entry
“Stopwatch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stopwatch. Accessed 20 Aug. 2025.
Copy CitationKids Definition
stopwatch
noun
stop·watch
ˈstäp-ˌwäch
: a watch having a hand or a digital display that can be started and stopped for exact timing (as of a race)
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