Its members are known by a number of common names.

Over the years they were known by a number of different names.

The city has been known by a number of names throughout history.

The river is known by a number of different names.

In three years, the number of names has dropped by 18 percent.

From the 20th century on, a number of names stand out.

The language is known by a large number of names.

The hospital has had a number of different names over its history.

A number of names have been used for this group.

The species are known by a number of different common names.