- 報告【ほうこく】 - report, information 
- 警告【けいこく】 - warning, advice 
- 告白【こくはく】 - confession (to a crime, wrongdoing, etc.), admission, professing one's feelings (to someone one wants to go out with), declaration of love, profession (of faith), confession (of sins) 
- 忠告【ちゅうこく】 - advice, warning 
- 広告【こうこく】 - advertisement, advertising, announcement, notice 
- 告げる【つげる】 - to tell, to inform, to announce, to indicate, to signal, to mark 
- 報告書【ほうこくしょ】 - (written) report 
- 被告人【ひこくにん】 - accused, defendant, prisoner at the bar 
- 被告【ひこく】 - defendant, the accused 
- 予告【よこく】 - advance notice, previous note, preliminary announcement, trailer (film, TV), preview 
- 告発【こくはつ】 - indictment, prosecution, complaint 
- 告訴【こくそ】 - accusation, complaint, charge, suit, legal action, legal proceedings 
- 警告音【けいこくおん】 - warning sound 
- 原告【げんこく】 - plaintiff, accuser, prosecutor 
- 申告【しんこく】 - report, return (e.g. tax), statement, declaration, notification, filing 
- 宣告【せんこく】 - sentence, verdict, pronouncement 
- 告別【こくべつ】 - farewell, leave-taking 
- 勧告【かんこく】 - advice, counsel, remonstrance, recommendation 
- 告示【こくじ】 - notice, bulletin 
- 通告【つうこく】 - announcement, notice