willow UK /ˈwɪl.əʊ/US /ˈwɪloʊ/noun 5verb 2forms 3phrases 1 noun5 •Any of various deciduous trees or shrubs in the genus Salix, in the willow family Salicaceae, found primarily on moist soils in cooler zones in the northern hemisphere.[…] and through the middle of this forest, from wall to wall, ran a winding line of brilliant green which marked the course of cottonwoods and willows. — 1912 •The wood of these trees. •(informal) A cricket bat. •(slang) The baseball bat. •A rotating spiked drum used to open and clean cotton heads. verb2 •To form a shape or move in a way similar to the long, slender branches of a willow.Willowing over the rough cobbles of the little pier stepped a thin, bent figure, adorned with a silver nanny-goat's beard and bobbling eyes interrupted by the rim of a pair of pince-nez. — 1928 •To open and cleanse (cotton, flax, wool, etc.) by means of a willow. formswillowed · willowing · willows Phrases with willow willow in the windOne whose views are easily and regularly changed by the persuasion or influence of others.