あおせん
Meanings
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)
3. non-legal public waterway (denoted by a blue line on cadastral maps; sometimes no longer physically existing)
Used inUsed in %
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Web novels0(0%)
Aozora Bunko1(0%)

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