\She"ol\ (sh[=e]"[=o]l), n. [Heb. sh[e^][=o]l.]
The place of departed spirits; Hades; also, the grave.
For thou wilt not leave my soul to sheol. --Ps. xvi.
10. (Rev.
Ver.)
 
Easton Bible Dictionary
Definition:
(Heb., "the all-demanding world" = Gr. Hades, "the unknown region"), the invisible world of departed souls. (See HELL.)