from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An abyss.
from the GNU version of the Collaborative International Dictionary of English
- n. An abyss; a gulf.
from The Century Dictionary and Cyclopedia
- n. A gulf; an abyss: as, “the abysm of hell,”
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively)
Middle English abime, from Old French abisme, from Vulgar Latin *abissimus, alteration of Late Latin abyssus; see abyss.(American Heritage® Dictionary of the English Language, Fourth Edition)