home w Giulio Ghirardi waterfall wa⋅ter⋅fall [waw-ter-fawl –noun 1. a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade. 2. a manner of arranging women's hair, as in long, loose waves. a b c d e f g h i j k l m n o p q r s t u v w x y z wait warpath waiting wall wash washing-machine washer waterfall watermelon waterproof weather water-canon wei-wou