Antarctica is the southernmost continent on Earth, covered almost entirely by ice and surrounded by the Southern Ocean. The name 南极洲 literally breaks down as 南 (nán, 'south'), 极 (jí, 'pole' or 'extreme end'), and 洲 (zhōu, 'continent' or 'landmass'). Together, they form a compound noun meaning 'the southern-pole continent' — a direct, descriptive geographical term widely used in Chinese maps, textbooks, and news reports.

This word is formal and neutral, commonly appearing in scientific, educational, and geopolitical contexts — for example, when discussing climate research, international treaties like the Antarctic Treaty System, or wildlife conservation. Unlike colloquial terms, 南极洲 is never shortened in standard usage (e.g., you wouldn’t say *南极* alone to mean the continent — that refers specifically to the South Pole point). It’s also distinct from 南极地区 (nánjí dìqū), which means 'Antarctic region' and may include surrounding oceanic areas.