査

サ

査, 木, 且, 月, 一

木

investigate

捜査(そうさ): search (esp. in criminal investigations); investigation; inquiry; enquiry
調査(ちょうさ): investigation; examination; inquiry; enquiry; survey
検査(けんさ): inspection (e.g. customs, factory); examination; scan (e.g. MRI, PET, etc.)
巡査(じゅんさ): police; policeman
審査(しんさ): judging; inspection; examination; investigation; review