1. 兄弟，兄，弟，弟兄
2. 同事，同僚，同业，同行业的人
3. 教友，社友，会友
4. 伙伴，同胞，同志
5. 黑人兄弟，黑人男子，黑人男子相互的称呼
6. 修士
7. 大学生联谊会成员
8. 老兄

1. 属于同组的

1. 和...结成弟兄
2. 对...以兄弟相待，视...如兄弟
3. 以兄弟相称，称兄道弟

1. [C]兄,弟 man or boy having the same parents as another person
2. [C]教友,会友 a male member of a religious group

1. a male with the same parents as someone else;

   "my brother still lives with our parents"
   

2. a male person who is a fellow member (of a fraternity or religion or other group);

   "none of his brothers would betray him"
   

3. a close friend who accompanies his buddies in their activities

4. used as a term of address for those male persons engaged in the same movement;

   "Greetings, comrade!"
   

5. (Roman Catholic Church) a title given to a monk and used as form of address;

   "a Benedictine brother"
   

1.（同父母的）兄，弟
Yourbrother is a boy or a man who has the same parents as you.

e.g. Oh, so you're Peter's youngerbrother...
哦，那么你是彼得的弟弟。
e.g. Have you got any brothers and sisters?
你有兄弟姐妹吗？

2.兄弟；同胞；教友；国人；同行；同志
You can describe a man as yourbrother if he belongs to the same race, religion, country, profession, or trade union as you, or if he has similar ideas to you.

e.g. He told reporters he'd come to be with his Latvian brothers.
他告诉记者他是来支持拉脱维亚同胞的。
e.g. ...the Cardinal and hisbrother bishops.
红衣主教和他的主教们

3.教徒，修士，僧侣（用于头衔）
brother is a title given to a man who belongs to a religious community such as a monastery.

brother的反义词

e.g. ...brother Otto.
奥托修士
e.g. ...the Christian brothers community which owns the castle.
拥有这座城堡的公教弟兄会

4.（用于某些公司或商店的名称中）
brothers is used in the names of some companies and shops.

e.g. ...the film company Warner brothers...
华纳兄弟电影公司
e.g. I went to Brooks brothers and bought myself a decent shirt.
我去布鲁克斯兄弟专卖店给自己买了一件体面的衬衫。

1. <<四海兄弟>：在与北野武的合作中,<>、<>、<>、<>等影片就包办了久石让五座日本影艺学院最佳电影音乐奖中的四座,北野武的近作<>(brother)、<>(Dolls)也都是出自久石让的手笔.