常灯
じょ
う
と
う
Meanings
1
continuously burning light; eternal flame
Typically a light kept burning at a Buddhist altar or shrine, symbolizing constant devotion.
The continuously burning light at the Buddhist altar must not be extinguished.
2
roadside lamp that stays lit all night
Historical or traditional lamp left burning through the night for travelers or as a public service.
In the old days, roadside lamps that stayed lit all night were placed along the highways.