When something is really huge, like a giant stone, building, or company, call it a monolith. You can also use it to describe a huge amount of work, like the monolith that is your 40-page term paper.
The noun monolith comes from the Greek words monos, meaning “single” and lithos, meaning “stone.” Any large structures, like a factory that could cover many football fields in size, can be called a monolith. So can monuments that have little definition, like Stonehenge. Even companies that seem to be everywhere, their products and neon-signed restaurants covering the globe, can be called monoliths.