Definition of 青線 (あおせん)
あおせん
青線
あおせん
aosen
noun
1.
blue line
2.
area around a red-light district where illegal prostitution occurred (marked on police maps by a blue line) (1940s-1956)
See also:青線地帯
Related Kanji
| 青 | blue, green |
| 線 | line, track |