Here, we can refer to neutral and ground
In our 220v electrical box here in Canada, red is the live or hot wire, Black is hot or live too, white is the neutral and earth is the one with no insulation.
110V is one live(black) and the neutral(white) and the earth wire.
All white wires are connected together and black goes to the live side of the outlet( for 110v )
For 220, we use one red and one black (2 X 110v)
Jeff