A block of ice is a large mass of frozen water, usually found in glaciers, icebergs, and other cold climates. The term 'block of ice' can be broken down into three parts: SERAC (5 letters), BERG (4 letters), and IGLOO (5 letters). A serac is a large block of ice found on a glacier, while a berg is an iceberg, a large chunk of ice that has broken off from a glacier or an ice shelf. An igloo is a type of shelter made from blocks of snow or ice, traditionally used by the Inuit people of the Arctic.