Indigo broom is a specialized term, referring to a specific type of broomstick that is traditionally made from indigo-coloured, dried twigs or plants. However, there are several synonyms for the term that could be used interchangeably depending on the context. For instance, it could be referred to as a "blue broom", "indigo brush", "navy whisk", or simply a "dried twig broom". Regardless of what term is used, its primary purpose remains the same, which is to sweep away loose dust or debris in households or outdoor settings. Overall, while the term "indigo broom" may be more precise, it is important to recognize that there are several other synonymous terms that could be used as well.