Meaning : Pull the plug of (electrical appliances) and render inoperable.
Unplug the hair dryer after using it.
Plug into an outlet.
Meaning : Make disconnected, disjoin or unfasten.
Connect, fasten, or put together two or more pieces.
Meaning : An unbridgeable disparity (as from a failure of understanding).
He felt a gulf between himself and his former friends.
There is a vast disconnect between public opinion and federal policy.