What is another word for continent?

There isn't a single perfect synonym for "continent," as it refers to a very specific concept. However, depending on the context, some alternatives could be:

Formal:

* Landmass: This emphasizes the physical size and extent of a continent.

* Supercontinent: This specifically refers to a vast, single landmass formed by the joining of multiple continents.

* Mainland: This is used to distinguish a large landmass from islands or other smaller landforms.

Informal:

* Land: This is a general term for any large area of ground.

* Big chunk of land: This is a casual way to describe a continent.

* World: This can be used to refer to a specific continent in a casual way, especially in phrases like "the whole world."

The best synonym will depend on the specific context and the meaning you wish to convey.