[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/stopwatch/)

[dictionaries](https://md.dictionary.elamur.ai/free/en/) / [English](https://md.dictionary.elamur.ai/free/en/english/) / [S](https://md.dictionary.elamur.ai/free/en/english/s/) / stopwatch

# stopwatch

noun (a stopwatch, stopwatches)

«stopwatch» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

A watch or timer that can be started and stopped by pressing a button, to measure exactly how long something takes. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#m1)

### In the lessons

In science lessons a stopwatch measures time in experiments (how long a ball takes to fall, a pendulum's swing). In PE it times races. In maths you read stopwatch times in minutes, seconds and hundredths of a second and work out differences; reaction time causes small errors.

### Examples

- The coach timed my sprint with a stopwatch. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x1)
- Start the stopwatch when the ball is dropped. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x2)
- The stopwatch showed 12.45 seconds. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x3)
- Ali ran in 9.8 seconds and Ben in 10.3, so Ali was 0.5 seconds faster. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x4)
- Most phones have a stopwatch app. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x5)
- Repeat the timing three times and find the average. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x6)

### Note

Plural: stopwatches (-es). Stopwatch times are often in seconds with decimals: 1:05.20 = 1 minute 5.20 seconds = 65.2 seconds. Lower time = faster in a race.

## On Mova

- [Trees and pragmatics of «stopwatch» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«stopwatch» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/stopwatch.html) on Mova free.