硬こう骨こつConjugationsTop 40000MeaningsNoun1. boneNounNo-adjectiveNa-adjective2. firmness (of character); backbone; unyielding spiritKanji used硬hard like a rock骨bonePitch accentこうこつUsed in vocabulary硬こう骨こつ漢かんman of principle; man of firm character; man of steadfast beliefsNoun硬こう骨こつ魚ぎょ類るいbony fishes; osteichthyansNoun硬こう骨こつ類るいbony fishes; OsteichthyesNoun