One of the common tenets of Christian Universalism (as well as Annihilationism) is the non-existence of Hell as an eternal punishment for non-Christians, that everyone has been granted salvation through grace (regardless of actual belief). This is often supported by referencing issues of translation in the creation of the word "Hell" altogether, in the form of the claims that all places that "Hell" occurs in translations of the Greek refer to:
Sheol/Hades: the unknown, afterlife, underworld, or a grave
Gehenna: either a physical place in Israel, or a representation of burning (referred to by Universalists as a place of spiritual purification - of the Greek
puros, a "refining fire")
Tartarus: warrants it's own discussion - a place where the fallen angels are kept, also present in Greek myth
- Grave or pit
As a reference, there's a chart of some words selected in various translations here. Additionally, there are often challenges of the usage of the word "eternal" in translations, as well as the concept of fire (or the Lake of Fire) being synonymous with "Hell."
Is there a basis in scripture for the concept of an eternal "Hell" for non-Christians, and how do particular denominations and groups approach the idea of an eternal "Hell"?