What does underworld mean?
An underworld most commonly means the world of organized crime: the networks, organizations, and activities that exist beyond lawful institutions. The expression can suggest secret deals, criminal enterprises, violence, or corruption, and it is often used when describing relationships with gangsters, smugglers, or other illicit operators. Underworld also has older and more literary meanings. In mythology and traditional religion, it can mean the realm of the dead, such as the underworld encountered in ancient stories. More broadly, the word can refer to any hidden or subordinate world beneath ordinary life, as in phrases describing the underground world of politics or entertainment. Because it combines the ideas of something below and something concealed, the word has a persistent association with secrecy and what lies beyond public view. Modern usage, however, is dominated by its figurative sense for organized crime, making it a useful word when describing hidden criminal systems rather than individual wrongdoing.
nounThe world of organized crime and other illicit activity, especially the criminal networks that operate beyond the boundaries of lawful society. It can also refer to a mythological realm of the dead or, more generally, a hidden or subterranean world.
- The world of organized crime, illicit business, and other activities outside the law.
- The realm of the dead in mythology or traditional belief.
- A hidden, lower, or otherwise concealed world, especially in figurative or literary contexts.
"The investigation exposed connections between politicians and the criminal underworld."
"Detectives warned that the suspect had extensive contacts in the underworld."
"According to legend, the hero must cross the underworld to rescue her brother."
Usually singular in the standard sense of organized crime. The plural is uncommon but can distinguish separate criminal or fictional underworlds.
"The series imagines parallel underworlds shaped by different supernatural forces."
From the realm of the dead to the hidden networks behind organized crime, underworld has always pointed to what lies beneath ordinary life.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does underworld come from?
Underworld is an English compound formed from Old English elements meaning “under” and “world.” It was originally used for the lower world and the realm of the dead, before acquiring its modern figurative sense for the world of organized crime in the early twentieth century. The related forms underworldly and underworldliness continue to express qualities associated with this hidden or criminal world.
Related word forms
How underworld is actually used
In contemporary English, underworld most often refers to organized crime and therefore carries a strongly negative, criminal association. Its mythological use is formal or literary, while the broader figurative sense can describe any hidden social or cultural realm.
Easily confused with underworld
Underground is a broader term for anything beneath the surface or outside mainstream society, while underworld specifically suggests the realm of the dead or the world of organized crime.