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)

彼所[asuko] there (place physically distant from both speaker and listener)
其れ所か[soredokoroka] on the contrary
所が[tokoroga] even so
所縁[yukari] related to (some person or place)
ジェット推進研究所[jettosuishinkenkyuusho] Jet Propulsion Laboratory

悪所[akusho] dangerous area
案内所[annaijo] information desk
育種所[ikushujo] (plant) nursery
一所懸命[isshokenmei] very hard
印刷所[insatsujo] press