真しん相そう究きゅう明めいしんそうきゅうめいMeanings1nounthorough investigation; getting to the bottom of the matteryojijukugo (four-character idiom)›A yojijukugo meaning to investigate thoroughly and uncover the truth. Often used in formal or journalistic contexts.警けい察さつは事じ件けんの真しん相