[ほね, hone] (n) (1) bone; (2) frame; (3) outline; core; (4) backbone; spirit; fortitude; (adj-na, n) (5) laborious; troublesome; difficult; (P) #3507
[みき(P);かん, miki (P); kan] (n) (tree) trunk; (arrow) shaft; (tool) handle; backbone; base; (P) #5769
[ちゅうけん, chuuken] (n, adj-no) (1) main body (of troops); (2) nucleus; backbone; mainstay; key figure; (3) center field; centre field; center fielder; centre fielder; (n) (4) athlete competing in the middle-number match in a team competition, i.e. second in 3-on-3, third in 5-on-5 (kendo, judo, etc.); (P) #11172
[ちゅうすう, chuusuu] (n, adj-no) centre; center; pivot; mainstay; nucleus; backbone; central figure; pillar; key man; (P) #12047
[kyanpasubakkubo-n] (n) { comp } campus backbone
[bakkubo-n] (n) { comp } backbone (e.g. of a network); (P)
[bakkubo-nnettowa-ku] (n) { comp } backbone network
[maruchikyasutobakkubo-n] (n) { comp } multicast backbone (Mbone)
[いくじ(P);いきじ, ikuji (P); ikiji] (n) self-respect; self-confidence; guts; backbone; (P)
[いくじのない, ikujinonai] (adj-i) spineless; backboneless; timid; cowardly; weak-kneed
[いじ, iji] (n) disposition; spirit; willpower; obstinacy; backbone; appetite; (P)
[きがい, kigai] (n) strong spirit; mettle; backbone; guts; fighting spirit; (P)
[きぼね, kibone] (n) (moral) backbone; spirit; soul; grit
[きこつりょうりょう, kikotsuryouryou] (adj-t, adv-to) (a person with) strong moral fiber (backbone, determination)
[ほねっぷし, honeppushi] (n) (1) joint (between bones); (2) backbone; spirit
[ほねぬき, honenuki] (n, adj-no) (1) boned (e.g. fish, etc.); (2) watered down (e.g. plan, bill, etc.); mutilated; (3) lacking integrity or moral backbone; (P)
[しゅちゅう, shuchuu] (n) (1) (See 大黒柱・1) central pillar; (2) (See 大黒柱・2) principal post; backbone of a society or community
[せきりょう, sekiryou] (n) backbone; mountain range
[だいこくばしら, daikokubashira] (n) (1) central pillar (of a building); (2) mainstay (e.g. of an economy); backbone (e.g. of a family); provider; main man; (P)
[なかぼね, nakabone] (n) backbone (of a fish)
[どしょうぼね, doshoubone] (n) one's innate character; spirit; backbone
[せぼね, sebone] (n, adj-no) spine; backbone; spinal column; (P)
[はんこつのせいしん, hankotsunoseishin] (n) backbone; spirit of defiance