新しん宿じゅく線せんMeanings1nounShinjuku LineserviceProper noun referring to a railway line named Shinjuku Line, typically in the Tokyo area. Used in transportation contexts.新しん宿じゅく線せんは新しん宿じゅく駅えきから本もと八や幡わた駅えきまで走はしっています。The Shinjuku Line runs from Shinjuku Station to Motoyawata Station.