名詞 mafia:

1. a crime syndicate in the United States; organized in families; believed to have important relations to the Sicilian Mafia
   同義詞：Maffia, Cosa Nostra
2. a secret terrorist group in Sicily; originally opposed tyranny but evolved into a criminal organization in the middle of the 19th century
   同義詞：Maffia, Sicilian Mafia
3. any tightly knit group of trusted associates
   同義詞：maffia

1. As soon as one of their members was threatened by the law, the Mafia closed ranks and gathered round him.
   黑手黨中一旦有人面臨法律制裁的威脅，其余的人就會一致行動，聚集起來支援他。
2. A Mafia overlord; a Mafia organization.
   黑手黨大地主; 黑手黨組織
3. He thinks the Mafia are out to get him.
   他意識到黑手黨要來報復他。

Ma.fi.a

n.（名詞）
A secret terrorist organization in Sicily, operating since the early 9th century in opposition to legal authority:
黑手黨：意大利西西里的一個秘密恐怖組織，起源于9世紀早期對合法當局的反抗：
例句：
.Rome they despised, the Mafia they feared, but not to submission.(Mario Puzo)
.他們鄙視羅馬，害怕黑手黨，但是絕不屈服.(馬里奧·普佐)

An alleged international criminal organization believed active, especially in Italy and the United States, since the late 9th century.
黑手黨：被指控為跨國界際的犯罪組織，自9世紀以來在意大利和美國特別活躍
Often mafia Informal A tightly knit group of trusted associates, as of a political leader:
常作 mafia 【非正式用語】 操縱小團伙：一個互相信任的緊密團結的群體，如一個政治首領的小集團：
例句：
.[He] is one of the personal mafia that [the chancellor] brought with him to Bonn. (Christian Science Monitor)
.［他］ 是 ［總理］ 帶到波恩去的同僚之一. (基督教科學箴言報)

n.attributive.（定語名詞）
Often used to modify another noun:
黑手黨：通常用來修飾另外一個名詞：
例句：
a Mafia overlord; a Mafia organization.
黑手黨大地主；黑手黨組織

來源：
Italian
意大利語
perhaps from dialectal mafia [bluster, boldness]
可能源自 方言 mafia [恫嚇，勇敢]