The Collaborative International Dictionary of English v.0.48:

Shiloh \Shi"loh\ (sh[imac]"l[=o]), n. [Heb. sh[imac]l[=o]h,
   literally, quiet, rest, fr. sh[=a]l[=a]h to rest.] (Script.)
   A word used by Jacob on his deathbed, and interpreted
   variously, as "the Messiah," or as the city "Shiloh," or as
   "Rest."
   [1913 Webster]

WordNet (r) 3.0 (2006):

Shiloh
    n 1: the second great battle of the American Civil War (1862);
         the battle ended with the withdrawal of Confederate troops
         but it was not a Union victory [syn: Shiloh, battle of
         Shiloh, battle of Pittsburgh Landing]