| underworld figure | 3.55 | A mysterious underworld figure emerges as a major drug kingpin. | ||
| underworld boss | 1.12 | Underworld bosses can order someone killed in Russia. | ||
| underworld gang | 0.72 | ...an underworld gang. | ||
| underworld connection | 0.66 | ...a wealthy businessman with underworld connections. | ||
| underworld group | 0.59 | The underworld group is Muslim. | ||
| underworld activity | 0.53 | Endemic criminal underworld activity has added its own bloody contribution to the turmoil. | ||
| underworld leader | 0.46 | Soon the men exchanged Christmas gifts, often books for the underworld leaders who loved to read. | ||
| underworld link | 0.46 | Some officials have been accused of having underworld links. | ||
| underworld violence | 0.39 | Shooting spree raises concern of increasing underworld violence. | ||
| underworld character | 0.33 | She also referred to the other underworld characters by fanciful street names. |