There are many synonyms for the word "lifejackets" that are commonly used in different parts of the world. One such synonym is "personal flotation device" (PFD), which is preferred in many countries. Other synonyms for lifejackets include "life vests," "buoyancy aids," "safety jackets," "flotation vests," and "life preservers." While the word "lifejackets" refers specifically to the device worn to keep one afloat in water, some of these synonyms can also refer to more general personal safety equipment, such as protective clothing or helmets. Regardless of the name used, these safety devices play a crucial role in keeping people safe during water-based activities.