underboss

un·der·boss

U0047900 (ŭn′dər-bôs′, -bŏs′)n. An assistant to a chief, especially in a crime syndicate.

underboss

(ˈʌndəˌbɒs) n (Sociology) a person who is second in command within a system of organized crime

Thesaurus

Noun

1.

underboss - an assistant or second-in-command to a chief (especially in a crime syndicate)assistant, helper, help, supporter - a person who contributes to the fulfillment of a need or furtherance of an effort or purpose; "my invaluable assistant"; "they hired additional help to finish the work"