An ice island is a large mass of floating ice that has broken away from a glacier or ice sheet. However, there are many other words that can be used to describe such landforms. One synonym for ice island is an ice floe. Another option is an ice sheet, which is a larger chunk of ice. Other synonyms include iceberg, ice cap, and glacial calving, which all refer to different forms of frozen water. Regardless of which synonym you use to describe an ice island, one thing is clear - these unique landforms are both beautiful and powerful, and they play an important role in shaping the world around us.