2 sentences for 死党 (sǐ​dǎng)

1. 她是我的死党，我们之间没有任何秘密。

   tā shì wǒ de sǐ​dǎng, wǒ​men zhī​jiān méi​yǒu rèn​hé mì​mì.

   She is my best friend; we have no secrets from each other.

   Source: Dong Chinese Dictionary

2. 那个犯罪头目身边有几个忠心的死党。

   nà gè fàn​zuì tóu​mù shēn​biān yǒu jǐ gè zhōng​xīn de sǐ​dǎng.

   The crime boss has several loyal henchmen by his side.

   Source: Dong Chinese Dictionary