A "strong fracture" refers to a break in a bone that is significant and serious. While this term is commonly used in medical contexts, there are many different synonyms that can be used to describe this type of injury. Some words that can be used interchangeably with "strong fracture" include severe break, serious bone injury, major fracture, and complex bone break. Other options include compound fracture, comminuted fracture, and displaced fracture. No matter which term is used, it is important to seek prompt medical attention for any type of bone fracture in order to ensure proper healing and prevent long-term complications.