Question

What is known as
as Continent ​

Answer 1

A continent is one of Earth's seven main divisions of land. The continents are, from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. When geographers identify a continent, they usually include all the islands associated with it.

Answer 2

The big Landmasses that consist of many sub-continents ( Countries ) is known as Continents.
They are big enough to be called landmasses unless there is only one country in the continent to be called an island. ( Australia is the example.)