This is how three Bible dictionaries define hell:
Harpers Bible Dictionary
hell, an English word used to translate Heb., Sheol; Gk., Hades; and Heb., Gehenna. In Christian tradition it is usually associated with the notion of eternal punishment, especially by fire. This idea appears in Isa. 66:24, but it is not clearly associated with a place. Jewish writings from the third century b.c. onward speak of places of punishment by fire for evil spirits and the wicked dead (1 Enoch 18:11-16; 108:3-7, 15; 2 Esd. 7:36-38). The book of Revelation describes a lake that burns with fire and brimstone in which the wicked will be eternally punished (Rev. 19:20; 20:14-15; 21:8).
Eastons Bible Dictionary
Hell derived from the Saxon helan, to cover; hence the covered or the invisible place. In Scripture there are three words so rendered:
(1.) Sheol, occurring in the Old Testament sixty-five times. This word sheol is derived from a root-word meaning to ask, demand; hence insatiableness (Prov. 30:15, 16). It is rendered grave thirty-one times (Gen. 37:35; 42:38; 44:29, 31; 1 Sam. 2:6, etc.). The Revisers have retained this rendering in the historical books with the original word in the margin, while in the poetical books they have reversed this rule.
In thirty-one cases in the Authorized Version this word is rendered hell, the place of disembodied spirits. The inhabitants of sheol are the congregation of the dead (Prov. 21:16). It is (a) the abode of the wicked (Num. 16:33; Job 24:19; Ps. 9:17; 31:17, etc.); (b) of the good (Ps. 16:10; 30:3; 49:15; 86:13, etc.).
Sheol is described as deep (Job 11:8), dark (10:21, 22), with bars (17:16). The dead go down to it (Num. 16:30, 33; Ezek. 31:15, 16, 17).
(2.) The Greek word hades of the New Testament has the same scope of signification as sheol of the Old Testament. It is a prison (1 Pet. 3:19), with gates and bars and locks (Matt. 16:18; Rev. 1:18), and it is downward (Matt. 11:23; Luke 10:15).
The righteous and the wicked are separated. The blessed dead are in that part of hades called paradise (Luke 23:43). They are also said to be in Abrahams bosom (Luke 16:22).
(3.) Gehenna, in most of its occurrences in the Greek New Testament, designates the place of the lost (Matt. 23:33). The fearful nature of their condition there is described in various figurative expressions (Matt. 8:12; 13:42; 22:13; 25:30; Luke 16:24, etc.).
The New Bible Dictionary
HELL. Hell in the NT renders the Gk. word transliterated as Gehenna (Mt. 5:22, 29-30; 10:28; 18:9; 23:15, 33; Mk. 9:43, 45, 47; Lk. 12:5; Jas. 3:6). The name is derived from the Heb. gê(ben)(benê) hinnōm, the Valley of (the son of Hinnom, a valley near Jerusalem (Jos. 15:8; 18:16), where children were sacrificed by fire in connection with pagan rites (2 Ki. 23:10; 2 Ch. 28:3; 33:6; Je. 7:31; 32:35). Its original derivation is obscure, but Hinnom is almost certainly the name of a person. In later Jewish writings Gehenna came to mean the place of punishment for sinners (Assumption of Moses 10:10; 2 Esdras 7:36). It was depicted as a place of unquenchable firethe general idea of fire to express the divine judgment is found in the OT (Dt. 32:22; Dn. 7:10). The rabbinic literature contains various opinions as to who would suffer eternal punishment. The ideas were widespread that the sufferings of some would be terminated by annihilation, or that the fires of Gehenna were in some cases purgatorial (Rosh Hashanah 16b-17a; Baba Mezia 58b; Mishnah Eduyoth 2. 10). But those who held these doctrines also taught the reality of eternal punishment for certain classes of sinners. Both this literature and the Apocryphal books affirm belief in an eternal retribution (cf. Judith 16:17; Psalms of Solomon 3:13).
The teaching of the NT endorses this past belief. The fire of hell is unquenchable (Mk. 9:43), eternal (Mt. 18:8), its punishment is the converse of eternal life (Mt. 25:46). There is no suggestion that those who enter hell ever emerge from it. However, the NT leaves the door open for the belief that while hell as a manifestation of Gods implacable wrath against sin is unending, the existence of those who suffer in it may not be. It is difficult to reconcile the ultimate fulfilment of the whole universe in Christ (Eph. 1:10; Col. 1:20) with the continued existence of those who reject him. Some scholars have contended that an eternal punishment is one which is eternal in its effects; in any case eternal does not necessarily mean never-ending, but implies long duration extending to the writers mental horizon (J. A. Beet). On the other hand Rev. 20:10 does indicate conscious, never-ending torment for the devil and his agents, albeit in a highly symbolic passage, and some would affirm that a similar end awaits human beings who ultimately refuse to repent. In any case, nothing should be allowed to detract from the seriousness of our Lords warnings about the terrible reality of Gods judgment in the world to come.
In Jas. 3:6 Gehenna, like the bottomless pit in Rev. 9:1ff.; 11:7, appears to be the source of evil on the earth.
NT imagery concerning eternal punishment is not uniform. As well as fire it is described as darkness (Mt. 25:30; 2 Pet. 2:17), death (Rev. 2:11), destruction and exclusion from the presence of the Lord (2 Thes. 1:9; Mt. 7:21-23), and a debt to pay (Mt. 5:25-26).
In 2 Pet. 2:4 only, we find the Verb tartaroō, translated in rsv cast into hell, and rendered by the Pesh. cast down to the lower regions. Tartaros is the classical word for the place of eternal punishment but is here applied to the intermediate sphere of punishment for fallen angels.
At the end of the day the official position of the Christian Church is that there is a place where the unrepentant shall spend eternity seperated from God in eternal punishment. This is quite clearly the intended viewpoint as espoused by the writers of the Bible.
If certain people do not wish to believe that this place and punishment exist, then that is their choice. However, they should be quite certain of their position as their witness about this issue shall have everlasting consequences for the lost that they converse with. They shall also have to give account for their non-disclosure of this fundamental belief.
A solid reading of Revelation 20 should suffice to indicate that there is this place of eternal suffering for those whose names are not in the Book of Life. If a person does not wish to call this place hell, then so be it. But this does not alter the eternal fact that the wicked "will be tormented day and night for ever and ever."
Woe to the Christian that waters down the gospel and does not present it in it's proven historical truth.