Translation guide
How to express 'disconnect' in Japanese depends on what is being disconnected: physical objects, phone calls, internet, or abstract relationships.
To separate two connected objects, unplug a cable, or detach something.
General verb for detaching or removing something that is attached or connected.
Please disconnect the cable.
To pull out a plug or cord from a socket.
Please unplug it.
To sever or cut off a connection, often used for mechanical parts or abstract ties.
I disconnected the hose from the engine.
To hang up or terminate a telephone conversation.
To be cut off from an online service or network.
Formal/technical term for disconnecting a network or line.
The internet connection has been disconnected.
Common casual way to say the connection dropped.
The Wi-Fi connection often disconnects.
Specifically to log out or disconnect from an account or session.
Please disconnect from your account.
To sever ties, disassociate, or create emotional distance.
To cut off a relationship or disown someone.
He disconnected from his family.
To put distance between oneself and someone else, emotionally or physically.
I decided to disconnect from him for a while.
To cut off and discard, often used for abandoning something or someone.
外す is for detaching something attached (like a cable from a port), 抜く is for pulling a plug out of a socket, and 切断する is more technical for cutting off a connection (like internet or power).
切断する sounds overly technical for ending a phone call. Use 切る instead.
hang up the phone
He disconnected from his past and started a new life.