A confidant is someone you tell your secrets to, or talk to about private, personal things, because you trust they will not pass the story on. It can be a friend, a brother, a teacher; the point is trust, not a job title.

A confidant confidant（知己） is someone you tell your secrets to指的是你會跟他說秘密、or talk to about private, personal things或談私事的人，because you trust they will not pass the story on因為你相信他不會把話說出去。It can be a friend, a brother, a teacher可以是朋友、兄弟、老師；the point is trust, not a job title重點是信任，不是身份頭銜。

The word is a little formal and bookish — in speech people often just say a close friend, or someone I can talk to. English borrowed it from French.

The word is a little formal and bookish這個字有點正式、書面——in speech people often just say a close friend口語裡人們常常就直接說a close friend（親密朋友），or someone I can talk to或說someone I can talk to（可以說話的人）。English borrowed it from French英文是從法文借來這個字的。

It can be a man or, in modern use, anyone.

It can be a man可以是男人，or, in modern use, anyone或者，在現代用法裡，是任何人都可以。

Though actually, it is one letter away from confident, which means sure of yourself. They share an old Latin root about trust, but today they do different work: one is a person, one is a feeling.

Though actually不過其實，it is one letter away from confident它跟confident只差一個字母，which means sure of yourself而confident的意思是對自己有信心。They share an old Latin root about trust這兩個字共用一個古老、跟信任有關的拉丁字根，but today they do different work但現在各做各的事：one is a person一個是指人，one is a feeling一個是指一種感覺。