‘远征’ literally combines ‘远’ (yuǎn), meaning ‘far’ or ‘distant’, and ‘征’ (zhēng), meaning ‘to march’, ‘to campaign’, or ‘to go on a mission’. Together, they form a formal noun meaning a long-distance expedition or military campaign—typically one that crosses great distances, often into unfamiliar or foreign territory. Historically, it frequently appears in contexts of exploration, conquest, or scientific fieldwork.

While ‘远征’ retains a classical and somewhat literary tone, it’s still used today in journalism, history, and documentaries—especially when describing large-scale, ambitious journeys such as polar expeditions, space missions, or archaeological surveys. It implies purpose, effort, and scale; it’s not used for casual travel or short trips. Unlike the neutral term ‘旅行’ (lǚxíng, ‘trip’), ‘远征’ evokes determination, risk, and national or institutional significance.