What is the common noun for Africa?

There isn't a single common noun for Africa. "Africa" itself is a proper noun, referring to the specific continent.

If you're looking for a general term, you could use:

* Continent: This is the most direct and accurate term.

* Landmass: This is a broader term that encompasses large areas of land.

* Region: This emphasizes the geographical area.

The best term to use depends on the context of your sentence.