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

From stopwatches to wearables, tech has elevated individuals' experiences through a plethora of on-demand metrics that provide a more holistic view of progress, and the Covid-19 pandemic sped this growth considerably. —Hamid Farooqui, Forbes.com, 11 Sep. 2025

Those bloated standing ovations, the ones the trades breathlessly cover with their stopwatches, happen at the latter. —Bilge Ebiri, Vulture, 3 Sep. 2025

An epigenetic clock is a biological stopwatch that measures how old your body (or a part of it) appears to be on a molecular level, measuring changes in DNA methylation. —New Atlas, 30 July 2025

At that point, the scientists aboard our plane pushed a button on a stopwatch. —Literary Hub, 24 July 2025

Word History

First Known Use

1737, in the meaning defined above

Rhymes for stopwatch

• hopscotch
• wristwatch
• boche
• botch
• brough
• crotch
• gotch
• notch
• rotch
• scotch
• swatch
• watch

Kids 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)