Continent
A particularly large region separated by other areas based on culture (Things such as language), Physical or natural borders (Such as mountains or oceans), or by the geographical location of the region (North & South America)

There are 7 continents recognized by the U.S.: North America, South America, Europe, Africa, Australia*

Australia*: Not to be confused with Oceania, a region made up of thousands of islands.
"The biggest continent is Asia, while the smallest continent is Australia."