This is the 2414th most frequent Korean word.
기소
Prosecution or indictment.
Here, 기소 describes the nature of being charged in the context of legal allegations.
기소된 혐의는 상당히 심각합니다.
The allegations for which he was indicted are quite serious.
기소 is used as a noun to mean 'indictment' and is part of the verb 기소하다, which means 'to indict.' Here, it describes the legal action taken by the prosecutor.
검사가 그를 기소했습니다.
The prosecutor indicted him.
기소 refers again to 'indictment,' and whether something is 기소 or not expresses a state of legal decision.