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yakuza

American  
[yah-koo-zah] / ˈyɑ kʊˌzɑ /

noun

plural

yakuza
  1. any of various tightly knit Japanese criminal organizations having a ritualistic, strict code of honor.

  2. such organizations collectively.

  3. a member of such an organization; gangster.


yakuza British  
/ jəˈkuːzə /

noun

  1. a Japanese criminal organization involved in illegal gambling, extortion, gun-running, etc

  2. a member of this organization

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of yakuza

1960–65; < Japanese: racketeer, gambler, good-for-nothing, useless, from the name of a game in which the worst hand is of three cards marked ya eight, ku nine (< Middle Chinese, equivalent to Chinese jiǒu ), and -za three (combining form of sa ( n ) < Middle Chinese, equivalent to Chinese sān )