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)

官邸[kantei] official residence (e.g. of the prime minister)
公邸[koutei] official residence
私邸[shitei] private residence
大使公邸[taishikoutei] ambassador's residence
邸宅[teitaku] mansion

邸内[teinai] grounds
別邸[bettei] villa
来邸[raitei] visiting someone's residence
御用邸[goyoutei] imperial villa