The word "yobibit" is a unit of digital information that represents 2 to the 80th power bits. It is an extremely large unit that is rarely used in computing and technology. There are not many synonyms for the word "yobibit," but some possible alternatives include "yottabit," "zettabit," and "exabit." These are all units of digital information that are used to measure large amounts of data. However, they all represent smaller quantities than a yobibit. It is important to note that when dealing with large amounts of data, it is essential to use the appropriate units to avoid confusion and miscommunication.