(でんげん)

でんげん
noun
power supply
1. power supply, power source
The source of electrical power for a device.
電源(でんげん)コード()いた
I unplugged the power cord.
The power source for this device is dry-cell batteries.
You should prepare an emergency power source in case of a disaster.
2. power switch
The button or switch that turns a device on or off.
電源(でんげん)()れてください
Please turn on the power.
電源(でんげん)(はい)らない
It won't turn on.
Common troubleshooting phrase
Please turn off the computer when you're done using it.

電源(でんげん) has two distinct meanings: the physical source of electrical power (sense 1) and the power switch or on/off function of a device (sense 2). In everyday conversation, sense 2 is more common.

COMPOUND: (でん) (electricity) + (げん) (source)

COMMON COLLOCATIONS:

USAGE:
電源(でんげん)()れる/() is used for devices in general. For lights specifically, 電気(でんき)つける/() is more natural.

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