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

家鴨[ahiru] domestic duck
鴨嘴[kamonohashi] platypus (Ornithorhynchus anatinus)
鴨居[kamoi] lintel
鴨打ち[kamouchi] duck hunting
鴨猟[kamoryou] duck hunting

鴨脚樹[ichou] ginkgo (Ginkgo biloba)
真鴨[magamo] mallard (Anas platyrhynchos)
間鴨[aigamo] cross between a mallard and domestic duck
小鴨[kogamo] green-winged teal (species of duck, Anas crecca)