noun

underworld

underworld, criminal fraternity, netherworld

He was a figure in the criminal underworld.

He was a figure in the criminal underworld.

In the myth, he journeys to the underworld.

In the myth, he journeys to the underworld.

the criminal underworld the world of organized crime He was a figure in the criminal underworld.

Synonyms: criminal world, netherworld, Hades

From 'under' + 'world', literally meaning a world that exists beneath the ordinary one.

Picture a secret world operating 'under' the normal world, either for crime or for spirits of the dead.

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