Closed circuit and Shunt circuit

Closed circuit noun - A complete electrical circuit around which current flows or a signal circulates.

Shunt circuit and closed circuit are semantically related. In some cases you can replace phrase "Shunt circuit" with "Closed circuit", this phrases are similar.

Shunt circuit noun - A closed circuit in which the current divides into two or more paths before recombining to complete the circuit.

Closed circuit and shunt circuit are semantically related. You can use "Closed circuit" instead a noun phrase "Shunt circuit".