brother

n. 兄弟

名词复数:brothers 

broth.er

n.（名词）
【复数】 broth.ers 缩写 bro.,br.,b.
A male having the same parents as another or one parent in common with another.
兄弟：兄弟的状态或关系
pl. Often breth.ren[brμY.r…n] One who shares a common ancestry, allegiance, character, or purpose with another or others, especially:
【复数】 常作 breth.ren[brμY.r…n] 兄弟会：拥有共同的祖先，共同的效忠对象，共同的特征或目的的伙伴尤指：
A kinsman.
男性亲友
A fellow man.
同胞
A fellow member, as of a fraternity, trade union, or panel of judges on a court.
兄弟会成员，工会成员，陪审团成员
A close male friend; a comrade.
密友；同志
A soul brother.
黑人兄弟
pl. Often brethren Something, such as a corporation or an institution, that is regarded as a member of a class:
【复数】 常作 brethren 同业：被看作一个阶层的一员的社团，机构等：
例句：
.A station that . . . relies on corporate contributions or advertising to survive runs the risk of becoming virtually indistinguishable from its commercial brethren.(W. John Moore)
.依靠法人团体的捐助和刊登广告来维生的电台，最后可能成为实质上的营利机构.(W.约翰·穆尔)

Abbr. Br.Ecclesiastical
缩写 Br.【基督教会】
A member of a men`s religious order who is not in holy orders but engages in the work of the order.
修士：尚未晋升为神父的教士
A lay member of a religious order of men.
教会的在俗人员
pl. Often brethren A fellow member of the Christian church.
【复数】 常作 brethren 教友：基督教会友

来源：
Middle English
中古英语
from Old English brôthor * see bhr3ter-
源自 古英语 brôthor *参见 bhr3ter-