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

磚子苗[kugu] Pacific island flatsedge (Cyperus cyperoides)

磚茶[tancha] brick tea

育苗[ikubyou] raising seedlings
桑苗[soubyou] mulberry seedling
種苗[shubyou] seeds and seedlings
痘苗[toubyou] vaccine
苗床[naedoko] nursery

苗代[nawashiro] rice nursery
苗木[naegi] seedling
苗字[myouji] surname
苗売り人[naeurinin] seedling peddler

草臥れる[kutabireru] to get tired
遺草[isou] posthumous works
一年草[ichinensou] annual (plant)
詠草[eisou] draft poem
下草[shitakusa] undergrowth

仮名草紙[kanazoushi] story in the kana
伽草子[togizoushi] fairy-tale book
海草[kaisou] marine plant
乾草[kansou] hay
甘草[kanzou] liquorice

莎草[shasou] galingale (any plant of genus Cyperus, esp. species Cyperus microiria)
塩莎草[shiokugu] Carex scabrifolia (species of sedge)

莎草[inukugu] Pacific island flatsedge (Cyperus cyperoides)