亜綱[akou] (biological) subclass
井戸綱[idozuna] well rope
井綱[izuna] well rope
横綱[yokozuna] yokozuna (grand champion)
綱曳き[tsunahiki] tug of war (orig. a form of divination to predict whether the year will be favourable or unfavourable)

綱紀[kouki] law and order
綱紀粛正[koukishukusei] eliminating corruption among government officials
綱渡り[tsunawatari] tightrope walking
綱要[kouyou] elements

会厭軟骨[eennankotsu] epiglottis
眼軟膏[gannankou] eye ointment
硬軟[kounan] hardness
柔軟[juunan] flexible
柔軟仕上げ剤[juunanshiagezai] fabric softener

柔軟性[juunansei] flexibility
軟らか[yawaraka] soft
軟化[nanka] softening
軟膏[nankou] ointment
軟骨[nankotsu] cartilage

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
遺骨[ikotsu] remains
化骨[kakotsu] ossification
会厭軟骨[eennankotsu] epiglottis
がい骨[gaikotsu] skeleton

雁骨[kariganebone] scapula
気骨[kikotsu] (moral) backbone
侠骨[kyoukotsu] chivalrous spirit
胸骨[kyoukotsu] breastbone
筋骨[kinkotsu] muscles (sinews) and bones

天魚[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
海鷂魚[ei] ray (fish)
斉魚[etsu] Japanese grenadier anchovy (Coilia nasus)
旗魚[kajiki] marlin
鶏魚[isagi] chicken grunt (species of fish, Parapristipoma trilineatum)

杜父魚[tofugyo] sculpin (any fish of family Cottidae, inc. the bullheads and the miller's-thumb)
堅魚[katsuo] skipjack tuna
魚網[gyomou] fishing net
魚屋[sakanaya] fish market
魚貝[gyokai] marine products