a structure that is built or chosen by a bird or other creature, usually for storing its eggs and protecting its young
There's a bird building its nest in that tree.

A hut is a house made of wood, grass, or mud that has only one or two rooms.
In the village, the man who had fire lived in a(n) hut.

a building used to store grain or animals
When she arrived at the house, she found her friends dancing in a barn.

a domed-shaped home made of snow
My home is an igloo. It is round.