Cases of word usage

1) a small animal of South America with a shell of bony plates, able to roll itself into a ball when attacked (armadillo)

2) the bony part of the head enclosing the brain (cranium)

3) the bony frame with the hip-bone and the lower part of the backbone, holding the kidneys, colon, bladder etc (pelvis)

4) thin and bony (scraggy)

5) thin and bony (scrawny)

6) the bony framework of an animal body; an outline, plan etc to which details are to be added (skeleton)

7) the bony framework of the head (skull)