The metric system uses the second as a main unit of time.

It was also used as a unit of currency.

Originally, the term was used as a systematic unit at the rank of order.

But they did say they thought of using us as a single unit within the organization.

Currencies used as a unit of account to price oil in the international market.

Not all calendars use the solar year as a unit.

The oka was also used as a unit of volume.

An atmosphere (atm) is often used as a unit of pressure.

Its force is often used in the public media and popular books as a unit of energy.

From the 16th century the county was increasingly used as a unit of local government.