倚子[isu] chair
倚子[ishi] traditional square chair with armrests and a torii-shaped back (used by the emperor, etc. during ceremonies)

倚り懸かる[yorikakaru] to lean against
倚る[yoru] to lean on

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