The word "漩涡" is formed by combining two characters that each convey the idea of a whirlpool. "漩" incorporates the water radical (氵) alongside "旋", which denotes spinning or rotation, directly indicating swirling water. "涡" also uses the water radical (氵) with "呙", implying a curvature or hollow, to represent a vortex. Together, they form a compound where both characters reinforce the same meaning, specifically a whirlpool or eddy.