A crimping iron is a hair styling tool that adds texture and volume to hair by creating crimped waves. There are a number of synonyms that can be used for this term, depending on the context and the region. Some common synonyms include a crimping wand, a waving iron, a texturizing iron, a wave iron, and a wave wand. Each of these terms refers to a similar type of styling tool that can be used to create different styles and looks. Regardless of which term is used, these tools are a popular choice for anyone looking to add some volume and texture to their hair.