渦
うず · uzu · JLPT N3 · noun
whirl
🌀🌊 渦 = water 氵 + 咼 twisted: water that twists round. uzu ≈ oozes
The left side 氵 means water, and 咼 carries the sense of crooked or twisted. Water that twists is a swirl. It is also the uzu in 渦巻き uzumaki (spiral), the surname of Naruto Uzumaki.