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noun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'
malicious gossip, backbiting, speaking ill behind someone's back
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だれか人に、言い分があったら、陰口をいわないで、その人に面と向かっていいなさい。
If you have a bone to pick with a person, tell it to his face instead of saying things behind his back.
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