When to use inter: Inter is a prefix that means between or among. It can also be a verb that means to bury a dead body in a grave. For example, International air travel is faster and easier than ever before.

Why do we use Inter?

Inter- is a common prefix that means between or among groups. For example, the interstate highway is a road system that goes between states, connecting them together.

How do you use inter and intra?

When to Use Intra- Intra- is a prefix used to form words that mean on the inside, within. Contrast this with inter- and you immediately see the difference. While inter- deals with open systems among groups, intra- deals with closed systems between a single group.