Swirl is a term used to describe a circular motion, often associated with water or air. The crossword solutions for this term include WHIRLPOOL (9 letters), CURL (4 letters), CONVOLUTION (11 letters), TWIST (5 letters), SPIN (4 letters), TURN (4 letters), FLOW (4 letters), WHIRL (5 letters), and EDDY (4 letters). Each of these words describes a type of circular motion, such as the spinning of a WHIRLPOOL, the curling of a wave, the CONVOLUTION of a spiral, the twisting of a rope, the spinning of a top, the turning of a wheel, the flowing of a river, the whirling of a tornado, and the eddying of a stream.