SemiConductor = Kind-of-conducts.Really! By applying electricity to the conducting material (usually in a transistor or Integrated chip) the conduction rate of the material changes. This allows you to change the flow of electricity through the semiconductor by using a second smaller control voltage.
This is the basis of most electrical components.
Conductors(made out of materials that are not semi-conductors) fully allow electricity to flow through it.
Insulators (Non-Conductors)completely block the flow of electricity.