underworld
Underworld (noun) means the organized criminal side of society, especially those involved in serious or large-scale crime. Example: “The detective had contacts deep in the city's underworld.”
How to use underworld
Learner’s notesIn plain EnglishEither the hidden world of organized crime, or the mythical realm of the dead.
Word forms
- Plural
- underworlds
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The detective had contacts deep in the city's _____.
Etymology
From under- plus world.
Synonyms
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Rhymes for underworld
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