Term: "Continent"
Definition
A continent is one of several very large landmasses on Earth, usually identified by convention rather than any strict criteria. Historically, continents are understood to be large, continuous, discrete masses of land, ideally separated by expanses of water. There are generally considered to be seven continents: Asia, Africa, North America, South America, Antarctica, Europe, and Australia (Oceania), from the largest to the smallest. The exact number can vary depending on the geographical model used; for example, Europe and Asia can be combined into Eurasia, and some models view North and South America as a single continent called America. Continents are not only defined by their land area but also by the distinct geological and biological features, cultural identities, and political territories they encompass. This division of the Earth's surface is fundamental to the human understanding of the world, influencing early exploration, cultural exchanges, and the current geopolitical landscape.