骨【ほね】
bone, frame, outline, core, backbone, spirit, fortitude, laborious, troublesome, difficult
骨髄【こつずい】
bone marrow, medulla, true spirit, one's mind
骨格【こっかく】
skeleton, skeletal structure, build, frame, physique, framework
骨子【こっし】
main point, gist, essentials, bones (e.g. of an idea), pith
鉄骨【てっこつ】
steel frame, steel beam, steel girder
骨折【こっせつ】
bone fracture
露骨【ろこつ】
open, unconcealed, undisguised, blatant, plain, frank, broad, lewd, indecent, crude
骨抜き【ほねぬき】
boning (fish or meat), deboning, watering down (a plan, bill, etc.), dilution, emasculation, taking the backbone out of, weakening
背骨【せぼね】
spine, backbone, spinal column
軟骨【なんこつ】
cartilage, nankotsu, (dish of) gristle (usu. of chicken, deep-fried)
頭骨【とうこつ】
skull