underworld

She was a shady figure in the Dublin underworld.

The central character of the novel is a sort of underworld figure.

The columnist insinuated—but never actually asserted—that the candidate had underworld ties.

Harry Turner, considered the local Mr Big of the criminal underworld, was found dead today at his home in Wandsworth.

The criminal organization operates in the underworld.

He was involved in illegal activities in the underworld.

She had connections with the underworld.

The underworld is known for its illicit dealings.

Many myths and legends are set in the underworld.

The underworld is a dangerous place filled with criminals.

The police are trying to crack down on underworld activities.

She was lured into the underworld by promises of easy money.

The underworld boss was arrested in a major police operation.

The underworld has its own code of conduct and rules.