noun
the five continents
Refers to the traditional five-continent model: Asia, Africa, Europe, America, and Australia; or Asia, Africa, Europe, North America, and South America. Usage may vary by context.
五大州の中で、アジアは最も人口が多い。
Among the five continents, Asia has the largest population.
六大州 refers to the six-continent model, often adding Antarctica.
Compound of 五 (five), 大 (big/great), and 州 (continent/state).