Strong's #12: abussos (pronounced ab'-us-sos)

from 1 (as a negative particle) and a variation of 1037; depthless, i.e. (specially) (infernal) "abyss":--deep, (bottomless) pit.

Thayer's Greek Lexicon:

̓́

abussos

1) bottomless

2) unbounded

3) the abyss

3a) the pit

3b) the immeasurable depth

3c) of Orcus, a very deep gulf or chasm in the lowest parts of the earth used as the common receptacle of the dead and especially as the abode of demons

Part of Speech: noun feminine

Relation: from G1 (as a negative particle) and a variation of G1037

Usage:

This word is used 9 times:

 

Luke 8:31: "to go out into the deep."
Romans 10:7: "shall descend into the deep? (that is, to bring up Christ again from"
Revelation 9:1: "the key of the bottomless pit."
Revelation 9:2: "And he opened the bottomless pit; and there arose a smoke"
Revelation 9:11: "which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon,"
Revelation 11:7: "that ascendeth out of the bottomless pit shall make war against them,"
Revelation 17:8: "ascend out of the bottomless pit, and go into perdition:"
Revelation 20:1: "the key of the bottomless pit and a great chain in"
Revelation 20:3: "him into the bottomless pit, and shut him up, and"