The calcaneofibular ligament is a crucial part of the ankle joint. It provides stability and support while allowing for fluid movement. However, there are several synonyms that can be used instead of the term "calcaneofibular ligament" such as lateral ligament, outside ligament, fibulocalcaneal ligament, fibular ligament, lateral ankle ligament, or CFL. These synonyms are often used interchangeably in medical literature and discussions to describe the same anatomical structure. Knowing these alternate terms can help in understanding medical terminology and communicating more effectively with healthcare professionals.