n. A large sea monster which guards the gates of hell at the bottom of the sea.
n. Something large; behemoth.
the GNU version of the Collaborative International Dictionary of English
n. An aquatic animal, described in the book of Job, ch. xli., and mentioned in other passages of Scripture.
n. The whale, or a great whale.
The Century Dictionary and Cyclopedia
n. An aquatic animal mentioned in the Old Testament.
n. Hence, in modern use Any great or monstrous marine animal, as the whale.
n. Anything of vast or huge size.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the largest or most massive thing of its kind
n. monstrous sea creature symbolizing evil in the Old Testament
Word Usage
"Thomas Barnett says the military should be divided between what he calls a leviathan force for high intensity wars and a system administrative force to rebuild nations."