雨子[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御菓子[okashi] confections
お子さん[okosan] (someone else's) child
お子様[okosama] child (someone else's)
山梔子[kuchinashi] Cape jasmine (Gardenia jasminoides)

させ子[saseko] whore
梃子摺る[tekozuru] to have much trouble
螺子回し[nejimawashi] screwdriver
硝子[garasu] glass
獅子女[sufinkusu] sphinx

吃逆[shakkuri] hiccough
悪逆[akugyaku] atrocity
悪逆無道[akugyakumudou] treacherous
可逆[kagyaku] reversible
可逆反応[kagyakuhannou] reversible reaction

逆さ[sakasa] reverse
逆に[gyakuni] conversely
逆らう[sakarau] to go against
逆ポーランド式[gyakupoorandoshiki] reverse Polish notation