- an Inuit house, being a dome-shaped hut usually built of blocks of hard snow.
- any dome-shaped construction thought to resemble an igloo: immense silos topped with steel igloos.
- a dome-shaped building for the storage of rockets or other munitions.
- an excavation made by a seal in the snow over its breathing hole in the ice.
- a dome-shaped Inuit house, usually built of blocks of solid snow
- a hollow made by a seal in the snow over its breathing hole in the ice