Behemoth

Etymology

From Hebrew "behemoth", an intensive plural of "behemah" (beast), meaning something like "the beast of beasts." It names a massive creature in the Book of Job, and English borrowed it to label anything of overwhelming size, especially corporate or industrial.

noun · /bih-HEE-muth/
Something enormous and powerful, especially a huge organization or machine.
What it names
Bigness with a hint of the monstrous — scale that is impressive and faintly menacing at once.
Example
A single retail behemoth now moves more goods than the next ten competitors combined.
Related idea
A behemoth is defined by sheer size and might; a juggernaut is defined by unstoppable momentum — the terror of a behemoth is how big it is, of a juggernaut how impossible it is to halt.