noun (common) (futsuumeishi)
1.bone
noun (common) (futsuumeishi)
2.frame
noun (common) (futsuumeishi)
3.outline; core
noun (common) (futsuumeishi)
4.backbone; spirit; fortitude
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
5.laborious; troublesome; difficult