How to Write 洄 (huí) — Meaning “To swirl; to go against the current.”

Picture a fish swimming upstream against the current: the water (氵) is pushing it back, but the fish keeps returning (回) to its original path. This image of water and a returning movement helps you remember the meaning of swirling or going against the flow.

When writing 洄, make sure the water radical 氵 on the left is narrow and uses three strokes (dot, dot, lift). The right part 回 must be balanced—the outer box should not be too wide or tall, and the inner mouth should be centered. A common mistake is making the 回 part look too square or touching the water radical.

洄 has the component 回 (return) inside and is used for water movement like swirls or fish migration. In contrast, 㳄 contains 欠 (mouth open) and is an old character for saliva or flowing liquid, while 汧 has 开 (open) and is a river name. Visually, 洄's right part is a full 回, whereas 㳄 has a different lower part and 汧 uses an open shape.

洄 appears most often in scientific or descriptive terms like 洄游 (fish migration) and 洄水 (backwater or eddy). It is not a common everyday character, but you will encounter it in biology or geography texts when talking about water currents or animal movements. A cultural note: 洄游 describes the remarkable migration of fish like salmon returning upstream to spawn.

Common words containing 洄 include: 洄游 (huí yóu) — Migration (of fish).; 洄水 (huí shuǐ) — Backwater; an eddy.; 洄旋 (huí xuán) — To swirl around; to eddy..