What is a continent or island?

A continent is one of the main landmasses of the globe, usually reckoned as seven in number (Europe, Asia, Africa, North America, South America, Australia, and Antarctica) An island is a tract of land completely surrounded by water, and not large enough to be called a continent. an island is a landmass completely surrounded by water a continent is a huge landmass (North America, Asia, Africa, etc.