‘Dà jiāng’ literally means ‘great river’ or ‘mighty river’, combining 大 (dà), meaning ‘big’, ‘great’, or ‘grand’, and 江 (jiāng), meaning ‘river’—specifically a large, flowing river, often one that runs to the sea. Unlike the more generic 河 (hé), which can refer to any river or stream, 江 carries connotations of scale, power, and cultural significance. In Chinese literature and geography, 大江 most commonly refers to the Yangtze River—the longest river in Asia—but it may also appear poetically or historically to describe other major rivers like the Yellow River or even metaphorically for any imposing natural waterway.

The term is formal and literary, frequently appearing in classical poetry, historical texts, news reports about geography or ecology, and patriotic or scenic descriptions. It is rarely used in casual daily speech; people usually say 长江 (Cháng Jiāng) when referring specifically to the Yangtze. As a compound noun, 大江 functions as a subject or object and does not take measure words in its standard usage.