‘浮萍’ (fú píng) is a noun referring to duckweed — tiny, free-floating aquatic plants that form green mats on still freshwater surfaces like ponds, ditches, or rice paddies. The first character 浮 (fú) means ‘to float’ and reflects the plant’s buoyant, surface-dwelling nature; the second character 萍 (píng) specifically denotes this type of small, rootless water plant. Together, they form a compound word emphasizing both its physical behavior and botanical identity.

In Chinese, ‘浮萍’ appears in ecological descriptions, classical poetry (often symbolizing transience or rootlessness), and everyday observations of natural scenery. It is not used for other floating debris or algae — only for true duckweeds (family Lemnaceae). While botanically precise, it’s also common in idioms and metaphors, such as ‘萍水相逢’ (meeting by chance, like drifting duckweeds), reinforcing its cultural association with impermanence and serendipity.