ハチ公[hachikou] statue of Hachiko (a dog) at Shibuya station
郭公[kakkou] common cuckoo (Cuculus canorus)
株式公開[kabushikikoukai] stock offering (to the public)
蒲公英[tanpopo] dandelion (esp. species Taraxacum platycarpum)
官公庁[kankouchou] government administration office

丸公[marukou] official price
勤め奉公[tsutomeboukou] apprenticeship
公平[kinpira] chopped burdock root (and sometimes carrot) cooked in sugar and soy sauce
公孫樹[kousonju] ginkgo (Ginkgo biloba)

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