Eyjafjallajokull, a name that became famous due to the 2010 Icelandic volcano eruption, is not an easy word to spell or pronounce. Therefore, it is no surprise that people have tried to find simpler synonyms to replace it. Some of the popular synonyms for Eyjafjallajokull include E15, Eyjafjalla, and Fimmvörðuháls. These names are much easier to remember and say, making them more accessible to people who are not familiar with the Icelandic language. However, Eyjafjallajokull remains the most accurate and authentic name to refer to the volcano and the surrounding glacier.