The Collaborative International Dictionary of English v.0.48:

Thor \Thor\, n. [Icel. [thorn][=o]rs. Cf. Thursday.] (Scand.
   Myth.)
   The god of thunder, and son of Odin.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Thor
    n 1: (Norse mythology) god of thunder and rain and farming;
         pictured as wielding a hammer emblematic of the
         thunderbolt; identified with Teutonic Donar

Moby Thesaurus II by Grady Ward, 1.0:

75 Moby Thesaurus words for "Thor":
   Aesir, Balder, Bor, Bori, Bragi, Donar, Forseti, Frey, Freya,
   Freyja, Freyr, Frigg, Frigga, Heimdall, Hel, Hertha, Hoenir, Idun,
   Indra, Ing, Ithunn, Jupiter Fulgur, Jupiter Pluvius,
   Jupiter Tonans, Loki, Nanna, Nerthus, Njord, Njorth, Odin,
   Reimthursen, Sif, Sigyn, Tiu, Tyr, Ull, Ullr, Vali, Vanir, Vidar,
   Vitharr, Wayland, Weland, Woden, Wotan, Wyrd, Zeus, ball lightning,
   bolt, bolt of lightning, chain lightning, dark lightning, deep,
   dread rattling thunder, fireball, firebolt, flying flame,
   forked lightning, fulguration, fulmination, levin bolt, lightning,
   oak-cleaving thunderbolts, peal of thunder, sheet lightning,
   stroke of lightning, thunder, thunderball, thunderbolt,
   thunderclap, thundercrack, thundering, thunderpeal, thunderstorm,
   thunderstroke



U.S. Gazetteer Places (2000):

Thor, IA -- U.S. city in Iowa
   Population (2000):    174
   Housing Units (2000): 88
   Land area (2000):     0.996351 sq. miles (2.580538 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.996351 sq. miles (2.580538 sq. km)
   FIPS code:            77790
   Located within:       Iowa (IA), FIPS 19
   Location:             42.688687 N, 94.048902 W
   ZIP Codes (1990):     50591
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Thor, IA
    Thor