noun / verb HSK 3
Traditional 開關
kāi guān
switch · to turn on and off · to open and close

Meaning

开关 literally means 'open-close' and refers to a device that controls the flow of electricity or other systems. As a noun, it's the physical switch you flip or press. As a verb, it means the action of turning something on and off repeatedly.

Usage

Most commonly used as a noun for light switches, power buttons, and circuit breakers. When used as a verb, it describes the repeated action of switching something on and off. In everyday speech, people usually say 打开 (dǎ kāi) for 'turn on' and 关 (guān) for 'turn off' rather than using 开关 as a verb.

Examples

  1. 01
    电灯开关在门旁边。
    Diàn dēng kāi guān zài mén páng biān.
    The light switch is next to the door.
  2. 02
    请不要频繁开关电脑。
    Qǐng yào pín fán kāi guān diàn nǎo.
    Please don't turn the computer on and off frequently.

Characters

Measure words

  • 一个开关

Common collocations

  • 电灯开关
    diàn dēng kāi guān
    light switch
  • 开关
    zǒng kāi guān
    main switch
  • 开关
    àn kāi guān
    to press the switch
  • 打开开关
    kāi kāi guān
    to flip the switch on

Origin

Compound word combining 开 (open/on) and 关 (close/off), reflecting the two states of a switch.

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