| Word | Reading | Meaning | Level |
| 報告 | ほうこく | report | N5 |
| 忠告 | ちゅうこく | warning, advice | N4 |
| 宣告 | せんこく | sentence, proclamation | N3 |
| 警告 | けいこく | warning | N3 |
| 告知 | こくち | public notification | N3 |
| 広告欄 | こうこくらん | advertisement column | N3 |
| 告発 | こくはつ | indictment, public accusation | N3 |
| 広告主 | こうこくぬし | commercial advertiser, sponsor | N3 |
| 密告 | みっこく | anonymous tip, secret leak | N3 |
| 布告 | ふこく | proclamation, decree | N3 |
| 告訴 | こくそ | complaint (to the police), accusation | N3 |
| 警告状 | けいこくじょう | letter of warning | N3 |
| 広告枠 | こうこくわく | advertising space | N3 |
| 布告文 | ふこくぶん | text of a proclamation | N3 |
| 内部告発 | ないぶこくはつ | whistleblowing | N2 |
| 告白 | こくはく | confession | N2 |
| 広告 | こうこく | advertising | N2 |
| 予告 | よこく | preview, advance notice | N2 |
| 申告 | しんこく | declaration | N2 |
| 勧告 | かんこく | recommendation | N2 |
| 是正勧告 | ぜせいかんこく | corrective recommendation | N1 |
| 通告 | つうこく | formal notification, announcement | N1 |
| 警告灯 | けいこくとう | warning beacon | N1 |
| 刑事告発 | けいじこくはつ | criminal complaint, prosecution referral | N1 |