"Snap willow" is a term used to describe a type of willow tree that is known for its ability to break easily and make a snapping sound. There are several synonyms for "snap willow" that can be used to describe this tree, including brittle willow, crack willow, and snapping willow. Additionally, this type of willow tree is also sometimes referred to as a twiggy willow or a wicker willow due to its thin, twig-like branches that are often used in basket weaving and other crafts. Regardless of what you call it, the snap willow is a fascinating and versatile tree that has served many purposes throughout history.