1. line; stripe; stria
この二つの点を結ぶ線は存在するのか。Does a line connecting these two points exist?
2. line (e.g. telephone line); wire
ねえ、線切れてるよ。Hey, the wire is cut.
3. ray (e.g. X-ray); beam
4. line (e.g. of a railroad); track; route; lane
この線は朝とても混む。This line gets really crowded in the morning.
5. outline; contours; form
6. level
7. division
8. line (of action); position; approach; policy; principle
いや、彼は本気で覚えていないという線もある。No, there's also the possibility that he genuinely doesn't remember.
9. impression one leaves; air one gives off