skeleton

US /ˈskel.ə.t̬ən/
UK /ˈskel.ə.t̬ən/
"skeleton" picture
1.

an internal or external framework of bone, cartilage, or other rigid material supporting or containing the body of an animal or plant.

:
The human skeleton is made up of 206 bones.
Archaeologists discovered a complete dinosaur skeleton.
2.

the supporting framework, basic structure, or main outlines of something.

:
The skeleton of the new building is now complete.
We only have the bare skeleton of the plan so far.