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# kw

abbreviation (kW, kw)

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

## Everyday

1. (science) kW stands for kilowatt, a unit of power equal to 1,000 watts. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#m1)
2. kWh stands for kilowatt-hour, a unit of energy used on electricity bills. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#m2)

### In the lessons

Science and everyday life: kettles, heaters and car engines are measured in kW; electricity bills count kWh. It tells the reader how much power a machine uses.

### Examples

- The kettle uses about 2 kW. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x1)
- A small heater may be 1 kW. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x2)
- Our electricity bill shows we used 300 kWh. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x3)
- The electric car's motor is 150 kW. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x4)
- 1 kW = 1,000 watts. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x5)
- A 2 kW heater for 3 hours uses 6 kWh. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/K/kw/#x6)

### Note

Correct writing: small «k», capital «W» (kW), because the watt is named after James Watt. Maths: kW × hours = kWh; e.g. 2 kW for 3 hours = 6 kWh. Do not mix kW (power) with kWh (energy).

## On Mova

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