所以
ゆえん
noun (common) (futsuumeishi)
reason
way of doing
cause
grounds
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由縁
ゆえん
noun (common) (futsuumeishi)
acquaintance
relation
affinity
reason
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油煙
油烟
ゆえん
noun (common) (futsuumeishi)
lamp soot (smoke)
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