duàn​kāi

turn off

断开 (斷開) duàn​kāi
turn off verb
to disconnect an electrical switch or power circuit

Be sure to disconnect the power supply before replacing the lamp tube.

sever verb
to break, disconnect, or sever a physical or logical connection

Our video call was interrupted because the signal suddenly cut out.

Frequency

Movie subtitles
1.25 per million appears in 1% of films
Written text
1.76 per million

Sources

Definitions
CC-CEDICT