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)

営林署[eirinsho] forest service field office
警察署[keisatsusho] police station
公署[kousho] government office
署名[shomei] signature
署名式[shomeishiki] signing ceremony (for a law, treaty, etc.)

消防署[shoubousho] fire station
税務署[zeimusho] tax office
代署[daisho] sign for another
副署[fukusho] countersignature
分署[bunsho] substation