安全[anzen] safety
安全域[anzeniki] safety margin
安全運転[anzenunten] safe driving
安全器[anzenki] safety device
安全期[anzenki] safe period

安全教育[anzenkyouiku] safety education
安全性[anzensei] safety
安全対策[anzentaisaku] safety measure
安全第一[anzendaiichi] safety first
安全地帯[anzenchitai] safety zone

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)

街娼[gaishou] prostitute
公娼[koushou] licensed prostitution
公娼全廃[koushouzenpai] abolition of licensed prostitution
娼妓[shougi] prostitute
男娼[danshou] male prostitute

娼婦[shoufu] prostitute
私娼[shishou] unlicensed prostitute
娼家[shouka] brothel
私娼窟[shishoukutsu] brothel
売娼[baishou] prostitution

改廃[kaihai] change
軍備撤廃[gunbiteppai] complete disarmament
公娼全廃[koushouzenpai] abolition of licensed prostitution
荒廃[kouhai] ruin
廃める[yameru] to stop

全廃[zenpai] total abolition
全廃論者[zenpaironsha] abolitionist
撤廃[teppai] annulment
廃る[sutaru] to go out of use
廃れる[sutareru] to go out of use