Here's a breakdown:

* Electric current is the flow of electric charge.

* Conductivity is the measure of how easily this flow of charge can occur through a material.

Materials with high conductivity allow electric current to flow easily, while materials with low conductivity resist the flow of current.

Here are some examples:

* Metals are excellent conductors of electricity because they have free electrons that can easily move.

* Insulators like rubber and glass are poor conductors because their electrons are tightly bound and cannot move freely.

* Semiconductors, like silicon, have conductivity between metals and insulators, making them useful in electronic devices.

So, in summary, the ability to transfer an electric current is known as conductivity.