| acheron | (Greek mythology) a river in Hades across which the souls of the dead were carried by Charon |
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| acheron | dark and dismal as of the rivers Acheron and Styx in Hades |
| acheron | death's-head moth |
| acheron | European hawkmoth with markings on the back resembling a human skull |
| acheron | dark and dismal as of the rivers Acheron and Styx in Hades |