Meaning of “disconnect” - Learner’s Dictionary

disconnect

verb [ T ] uk us /ˌdɪskəˈnekt/
SEPARATE

to separate two things that are joined or connected, especially a piece of equipment and a power supply:

Switch off the machine before disconnecting it from the power supply.
INTERNET

to stop being connected to the Internet

(Definition of “disconnect” from the Cambridge Learner’s Dictionary © Cambridge University Press)