加答児[kataru] catarrh
愛児[aiji] beloved child
遺児[iji] orphan
育児[ikuji] childcare
育児院[ikujiin] orphanage

育児園[ikujien] baby nursery
育児時間[ikujijikan] nursing time
育児室[ikujishitsu] nursery
育児食[ikujishoku] baby food
育児法[ikujihou] child-rearing practice

御孫さん[omagosan] grandchild
公孫樹[kousonju] ginkgo (Ginkgo biloba)
玄孫[genson] great-great-grandchild
子孫[shison] descendants
児孫[jison] children and grandchildren

孫引き[magobiki] citation at second remove
孫息子[magomusuko] grandson
孫娘[magomusume] granddaughter
嫡孫[chakuson] eldest son's descendants