‘Dà Yáng Zhōu’ (Oceania) is a proper noun referring to the geographic region comprising Australia, New Zealand, Papua New Guinea, and numerous Pacific island nations and territories. The name literally breaks down as ‘dà’ (great, vast), ‘yáng’ (ocean), and ‘zhōu’ (continent or landmass), together conveying ‘the vast oceanic continent’—a descriptive term reflecting its defining feature: being surrounded by and defined through the Pacific Ocean.

This term is used formally in geography, education, news, and international contexts (e.g., UN regional groupings). Unlike ‘Australia’, which refers specifically to the country, ‘Dà Yáng Zhōu’ encompasses all sovereign states and dependencies in the broader southwestern and central Pacific—including Polynesia, Melanesia, and Micronesia. It appears in phrases like ‘Dà Yáng Zhōu guójiā’ (Oceania countries) or ‘Dà Yáng Zhōu qìhòu’ (Oceania’s climate), and is standard in Chinese textbooks and atlases.