In this experiment, energy is measured in electron volts.

He thinks that war is a necessary evil.

Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

There is still a fixed-line telephone in my house.

This program uses fixed-length blocks.

Fixed media is convenient for data storage.

This company plans to increase its production capacity by increasing its fixed capital.

We have to pay property tax every year.