Hell, i.e., Hebrew "sheol", Greek "hades", should all mean the same thing, right? But the current meaning of "hell" is far from the translation of the Hebrew and Greek meanings.
I agree that "hell", i.e., "hades", is the destiny of all the unsaved; and is the "second death" as said in Revelation 20:14-15. Seeing as how "death and hell (hades)" are thrown into the lake of fire to be no more - reinterated in Revelation 21:8 - and that when one is "dead" one is dead. One should remember that our God is spoken of as a "consuming fire" - and what gets thrown into a fire gets burned up. In fact, the very strong terms Jesus used to portray the punishment of the unsaved cannot be interpreted to mean that the unsaved suffer eternally in fire as is portrayed by the meaning of "hell" in the minds of most today. Both "sheol" and "hades" means the place of the "dead", not the living. Read this!
Hades or the Greek underworld is spoken about in four senses in Scripture.
1) Abraham’s Bosom, also known as Paradise or the abode of OT believers after the first death prior to the Resurrection. Separated from the Torments by a great gulf fixed.
2) The Torments, or the place or abode of all unbelievers after the first death prior to the Great White Throne Judgment.
3) Tartarus, or a prison for some fallen angels.
4) The Abyss, location of criminal fallen angels, from which some will be released at the middle of the Great Tribulation.