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# stopwatch

«stopwatch» in Mova's school dictionary: **A watch or timer that can be started and stopped by…** — its meaning for a pupil, its sense in the lessons and examples, with 3 sentences of Mova's corpora that use it.

### part of speech

noun (a stopwatch, stopwatches)

### meaning for a pupil

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

### sense 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://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x1)
- Start the stopwatch when the ball is dropped. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x2)
- The stopwatch showed 12.45 seconds. [tree →](https://md.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://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x4)
- Most phones have a stopwatch app. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/#x5)
- Repeat the timing three times and find the average. [tree →](https://md.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.

### In the corpora

- [Think of a school sports day: each class cheers for its own team, but the stopwatch is the same for everyone.](https://md.mova.elamur.ai/free/en/corpora/school/history/60-china-mei-s-exaggerations-and-everyday-china/5/)
- [Sources are history's stopwatch.](https://md.mova.elamur.ai/free/en/corpora/school/history/60-china-mei-s-exaggerations-and-everyday-china/6/)
- [A stopwatch measures short times very exactly, even tenths and hundredths of a second.](https://md.mova.elamur.ai/free/en/corpora/school/world/105-alarms-stopwatches-how-long-a-second-is/1/)

### Trees and pragmatics

[Every meaning and example of «stopwatch» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/stopwatch/), each sentence with its dependency tree and frames.