leviathan
noun
Often Leviathan a sea monster.
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leviathan
American
[li-vahy-uh-thuhn]
/ lɪˈvaɪ ə θən /
noun
-
Bible. Often Leviathan a sea monster.
-
any huge marine animal, as the whale.
-
anything of immense size and power, as a huge, oceangoing ship.
-
Leviathan, a philosophical work (1651) by Thomas Hobbes dealing with the political organization of society.
leviathan
British
/ lɪˈvaɪəθən /
noun
-
Bible a monstrous beast, esp a sea monster
-
any huge or powerful thing
Leviathan
Cultural
Discover More
Figuratively, a “leviathan” is any enormous beast.
Leviathan is a work on politics by the seventeenth-century English author Thomas Hobbes.
Etymology
Origin of leviathan
First recorded in 1350–1400; Middle English levyathan, from Late Latin leviathan, ultimately from Hebrew liwyāthān
Explanation
A leviathan is a giant sea creature. It can be real, like a whale, or mythical. Moby Dick is an example of a famous leviathan. The word comes from Hebrew livyathan which means a great sea serpent or sea monster. A real leviathan is the giant sea squid Architeuthis, which was photographed alive for the first time in 2005. A leviathan can also be something that is really, really big. The Titanic was a leviathan that now rests with leviathans.
Vocabulary lists containing leviathan
Lord of the Flies
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Rap Lyrics
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Refugee
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It expanded into a $1.8 trillion leviathan through a series of big-ticket mergers.
From The Wall Street Journal • Dec. 6, 2025
But — and this is one leviathan of a “but” — something else is starting to emerge in the polling.
From Seattle Times • Mar. 9, 2024
What an extraordinary signing the Japanese leviathan has been, what a goals haul, what joy he has sparked among the Celtic support.
From BBC • Apr. 8, 2023
Plagiarism-detection leviathan Turnitin is touting its own “A.I.” solutions to confront the burgeoning issue.
From Slate • Feb. 3, 2023
The largest fish, a leviathan nearly the size of Laleh’s hand, only had its right eye.
From "Darius the Great Is Not Okay" by Adib Khorram
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
