| 老公 | elderly nobleman |
| 公益を図る | to labor (labour) for the public good, to work for the public good |
| 公開の席 | in public |
| 公住 | apartment house built by the Japan Housing Corporation |
| 社公連合 | coalition of the Socialist Party and the Komeito |
| 自公民 | Liberal Democratic Party, Komeito and Democratic Socialist Party |
| ポリ公 | police, policeman, police officer |
| 公安委員会 | public safety commission |
| 公開練習 | public workout |
| 公開録音 | public recording |
| 公害対策 | anti-pollution measures |
| 公職選挙法 | Public Office Election Law |
| 公転速度 | orbital speed |
| 選挙公報 | official gazette for elections |
| 地方公共団体 | local public body |
| 公魚 | Japanese pond smelt (Hypomesus nipponensis) |
| 公権力 | public power, governmental authority |
| コンソル公債 | consolidated annuities, consols |
| 宇宙公害 | space environmental pollution |
| 永久公債 | perpetual bond |
| 鉛公害 | lead pollution |
| 外国為替公認銀行 | authorized foreign exchange bank, authorised foreign exchange bank |
| 株式公開買付制度 | tender offer, take-over bid, TOB |
| 国家公安委員会 | National Public Safety Commission |
| 公害等調整委員会 | Environmental Dispute Coordination Commission |
| 公安審査委員会 | Public Security Examination Commission |
| 公衆送信権 | public transmission rights (e.g. putting copyrightable material on the WWW or an FTP server) |
| 公企業 | public corporation |
| 公共事業費 | public-works spending |
| 公共物汚損 | vandalism |
| 公権的解釈 | official interpretation or construction (e.g. of a law) |
| 公債市場 | bond market |
| 公設秘書 | government-paid secretary |
| 公的債務 | sovereign debt |
| 公的資金 | public funds, public money |
| 情報公開条例 | information-disclosure ordinance |
| 騒音公害 | noise pollution |
| 未公開株式 | private equity |
| 公傷制度 | official injury exemption system, system for exempting players injured in an official match from pay reduction or demotion |
| 公私混同 | intermingling of public policy with private interest, mixing up official business with personal affairs |
| 公務中 | on duty |
| 公務員管理職 | executive positions in the civil service |
| 凱旋公演 | performance given after a successful tour abroad |
| 近隣公害 | (noise, smell, air, water) pollution in the neighborhood |
| 公正無私 | fair and impartial, just and unselfish |
| 女中奉公 | domestic service, working as a housemaid, domestic help, domestic helper |
| 白昼公然 | openly and in broad daylight |
| 武家奉公 | service with a samurai family, serving in a samurai household (as a valet, chambermaid, etc.) |
| 自公 | Liberal Democratic Party and Komeito |
| 公助 | rescue and assistance (by public bodies) (e.g. in time of disaster) |
| アメ公 | American person, Yankee |
| イタ公 | Italian person |
| 国家公安委員会委員長 | National Public Safety Commission Chairman |
| 低公害車 | low-emission vehicle |
| 公言してはばからない | having no hesitation in stating, having no hesitation in declaring |
| 無公害 | unpolluted, non-polluting |
| 先公 | previous ruler, previous lord, lord of the previous generation |