追つい究きゅうTop 25000MeaningsNounSuru verbTransitive verb1. thorough investigation; close inquiry; pursuit (e.g. of the truth)Kanji used追follow究researchPitch accentついきゅうExamples1彼かれらは宇う宙ちゅうのなぞを追つい究きゅうしている。They are investigating the mystery of the universe thoroughly.