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