HELL DEFENDED - HELL, GRAVE, SHEOL, HADES, GEHENNA

One of the major reasons why many annihilationists are confused about the eternality of hell is simply by the misunderstanding of words like 'hell' and 'sheol'.

-6:20 - Does the word 'sheol' mean 'grave' as in a tomb, sepulcher, or hole in the ground?
-15:34 - Does 'Gehenna' only mean the Valley of Hinnom'?
-22:57 - The word 'Tartaros'