As a Noun: 1. Of a piece of equipment, the act of detaching it from its source of power, such as a gas or electricity supply. English = disconnection. 2. The act of turning off the connection to your house of the gas, electricity, water, or telephone. English = disconnection. 3. The complete end of something. English = termination. As a Verb or Adjective: 1. Of a piece of equipment, to detach it from its source of power, such as a gas or electricity supply. English = disconnect, cut off. 2. To turn off the connection to your house of the gas, electricity, water, or telephone. English = disconnect, cut off. 3. To end something completely. English = terminate.