Continent (noun)

1. A large landmass on Earth, usually defined as a body of land surrounded by water, consisting of one or more countries.
2. A large, continuous area of land, as opposed to an island or archipelago.
3. A large mass of land, as opposed to water.

Origin:

From middle english, from old french continent, from latin continentem, present participle of continere ("to hold together, contain"), from con- ("together") + teneō ("hol.d")

Examples:

1. Africa is a continent.
2. The Americas are two continents.
3. Europe and Asia are part of the same continent.
4. Australia is the smallest continent.
5. Antarctica is a continent covered in ice.