名詞 confidant:

1. someone to whom private matters are confided
   同義詞：intimate

1. A close friend or confidant.
   至交親密的朋友或知己
2. I have a good confidant.
   我有一個(gè)好知己。

con.fi.dant

n.（名詞）
One to whom secrets or private matters are disclosed.
知己：能向其傾吐秘密或私事的密友
A character in a drama or fiction, such as a trusted friend or servant, who serves as a device for revealing the inner thoughts or intentions of a main character.
密友：戲劇或小說中的人物，如作為可信賴的朋友或仆人，來揭露主角的內(nèi)心思想和意圖

來源：
French confident
法語 confident
from Italian confidente
源自 意大利語 confidente
from Latin cônfodôns cônfodent- [present participle of] cônfodere [to rely on] * see confide
源自 拉丁語 cônfodôns cônfodent- [] cônfodere的現(xiàn)在分詞 [依賴于] *參見 confide