遺告[yuigou] will
戒告[kaikoku] admonition
勧告[kankoku] advice
勧告案[kankokuan] recommendation
勧告者[kankokusha] adviser

勧告状[kankokujou] letter of advice
求婚広告[kyuukonkoukoku] matrimonial advertisement
求妻広告[kyuusaikoukoku] advertisement for a wife
求職広告[kyuushokukoukoku] situation-wanted advertisement
求人広告[kyuujinkoukoku] help wanted advertisements

遺誡[ikai] one's last caution
誡める[imashimeru] to admonish
訓誡[kunkai] warning
誡告[kaikoku] warning

教誡[kyoukai] counselling (often of imprisoned criminals by a chaplain, etc.)
十誡[jikkai] the 10 precepts
誡め[imashime] caution