WordNet (r) 3.0 (2006):

Persephone
    n 1: (Greek mythology) daughter of Zeus and Demeter; made queen
         of the underworld by Pluto in ancient mythology; identified
         with Roman Proserpina [syn: Persephone, Despoina,
         Kore, Cora]

Moby Thesaurus II by Grady Ward, 1.0:

92 Moby Thesaurus words for "Persephone":
   Agdistis, Aides, Aidoneus, Amor, Aphrodite, Apollo, Apollon, Ares,
   Artemis, Ate, Athena, Bacchus, Cerberus, Ceres, Charon, Cora,
   Cronus, Cupid, Cybele, Demeter, Despoina, Diana, Dionysos,
   Dionysus, Dis, Dis pater, Erebus, Eros, Flora, Frey, Gaea, Gaia,
   Ge, Great Mother, Hades, Hel, Helios, Hephaestus, Hera, Here,
   Hermes, Hestia, Hymen, Hyperion, Jove, Juno, Jupiter,
   Jupiter Fidius, Jupiter Fulgur, Jupiter Optimus Maximus,
   Jupiter Pluvius, Jupiter Tonans, Kore, Kronos, Loki, Magna Mater,
   Mars, Mercury, Minerva, Minos, Mithras, Momus, Neptune, Nike,
   Olympians, Olympic gods, Ops, Orcus, Osiris, Persephassa, Phoebus,
   Phoebus Apollo, Pluto, Pomona, Poseidon, Proserpina, Proserpine,
   Rhadamanthus, Rhea, Satan, Saturn, Tellus, Triptolemos,
   Triptolemus, Venus, Vesta, Vulcan, Zeus, corn god, fertility god,
   forest god, vegetation spirit