Above-ground cubby (4,5)
I believe the answer is:
tree house
(Other definitions for tree house that I've seen before include "in which children play" , "Two kinds of box" , "Children's play space in the branches" , "Building in the branches" .)
I believe the answer is:
tree house
(Other definitions for tree house that I've seen before include "in which children play" , "Two kinds of box" , "Children's play space in the branches" , "Building in the branches" .)