bone ②frame ③laborious

rib ②frame (of a ship)

person of doubtful origin

flesh and bones

boning (fish or meat) ②watering down (a plan, bill, etc.) ③taking the backbone out of

waste of labor or energy

spine

to exert oneself greatly

useless

small bones

relaxation

framework (of a building) ②mainstay

skeletal frame ②framework ③outline

big-boned ②solid (plan, storyline, etc.)

on the bone (meat, etc.) ②skeletal system

joint (between bones)

hipbone ②fortitude

sparing oneself

rickets ②boneless

backbone (of a fish)

bone fracture

steel frame

skeleton ②framework

white (bleached) bone

open ②broad

skeleton

skull

one's true worth

dish made with pork belly and bones, simmered with miso, sake, vegetables, etc. (from Kagoshima)

making one's best exertions

curio

cremated remains (esp. the bones) ②remains (of war dead)

exoskeleton

ghostly skeletal old man who emerges from wells (Japanese folklore)

collarbone

the height of folly

cartilage ②nankotsu

ossification

cremated remains (esp. the bones)

skeletal remains

reduced to skin and bones