Use only as directed.

Is it a direct flight?

It will soon be possible for us to go direct to New York by air.

Can you give me directions to the nearest train station?

The directional signs in the city are very clear.

The teacher gave us a directive to complete the assignment by Friday.

She is my direct report.

Direct current is used in many electronic devices.

The surveillance footage is a direct evidence of the crime.

I received a direct mail advertising a new product.