A contour.
Rome is commonly referred to as the "Eternal City."
"Relief" is a word describing the variation in height of different points on the land surface. The variations in height are usually displayed as differing contour lines (lines linking points of equal height).Maps of this type are commonly referred to as topographic or relief maps.See link.
What are the parallel ports on a computer commonly referred to as?
its commonly referred to the due process clause
Commonly referred to as the 'kernel'
A bolt with no head is commonly referred to as a screw.
The 1920s was commonly referred to as "The Roaring 20s".... The 1930s was commonly referred to as "The Dirty Thirties"
The insect commonly referred to as a bug with long wings is called a "beetle."
A group of maps is commonly referred to as a "map collection." In more specific contexts, it can also be called a "cartographic collection" or a "map archive." These collections can include various types of maps, such as topographic, thematic, or historical maps, organized for study, reference, or display.
Lipids are commonly referred to as Fats, OIls, and Waxes.
It is referred to as the Outback.
In the majority of Australia they are commonly referred to as "Hoodles".