Nantoka/深究shēn jiū深究 (shēn jiū) is a Chinese word meaning “to perform an in-depth investigation”.Meanings1to perform an in-depth investigationCharacters in 深究深shēn · (lit. and fig.) deep究jiū · after allRelated words研究research深(lit. and fig.) deep深old variant of 深[shen1]究竟to go to the bottom of a matter深刻profound深处abyss深入to penetrate deeply深深deep深度depth深夜very late at night终究in the end; after all; eventually深感to feel deeplyStudy Chinese with flashcards →