電気(でんき)

でんき
noun
electricity; electric light
electronics
See also: 伝記(でんき) (biography (homophone))
1. electricity
Electric power or current used to power devices and appliances.
電気(でんき)が止(と)まった。
The electricity went out.
この車(くるま)は電気(でんき)で走(はし)る。
This car runs on electricity.
夏(なつ)はエアコンを使(つか)うので、電気(でんき)代(だい)が高(たか)くなる。
In summer I use the air conditioner, so the electricity bill goes up.
2. electric light
A light that is powered by electricity, often used colloquially to mean 'the lights'.
電気(でんき)を消(け)す。
Turn off the lights.
電気(でんき)を付(つ)けてください。
Please turn on the lights.
寝(ね)る前(まえ)に、部屋(へや)の電気(でんき)を消(け)し忘(わす)れないでね。
Don't forget to turn off the light in your room before bed.

電気(でんき) means both 'electricity' as a power source and 'electric light' in everyday usage.

Common collocations

Related words

Watch out

Do not confuse with 伝記(でんき) (biography), which has the same reading.

Related Words

Related: 停電(ていでん) (power outage)
Related: 電力(でんりょく) (electric power)
Compare: 電灯(でんとう) (electric light)
Compare: 明(あ)かり (light, lamplight)
Related: 電動(でんどう) (electric-powered)
Compare: 電流(でんりゅう) (electric current)
Compare: 電磁気(でんじき) (electromagnetism)
general
Added 2026.2.3 20:36 · Revised 2026.10.4 22:17
09500/09780_denki