from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A male having the same parents as another or one parent in common with another.
- n. One who shares a common ancestry, allegiance, character, or purpose with another or others, especially:
- n. A kinsman.
- n. A fellow man.
- n. A fellow member, as of a fraternity, trade union, or panel of judges on a court.
- n. A close male friend; a comrade.
- n. A fellow African-American man or boy.
- n. Something, such as a corporation or institution, that is regarded as a member of a class: "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).
- n. A member of a men's religious order who is not in holy orders but engages in the work of the order.
- n. A lay member of a religious order of men.
- n. A fellow member of the Christian church.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Son of the same parents as another person.
- n. A male child descended from the same parents.
- n. A male having at least one parent in common with another (see half-brother, stepbrother).
- n. A male fellow member of a religious community, church, trades union etc.
- n. A black male.
- n. Someone who is a peer, whether male or female.
- v. To treat as a brother.
from the GNU version of the Collaborative International Dictionary of English
- n. A male person who has the same father and mother with another person, or who has one of them only. In the latter case he is more definitely called a half brother, or brother of the half blood.
- n. One related or closely united to another by some common tie or interest, as of rank, profession, membership in a society, toil, suffering, etc.; -- used among judges, clergymen, monks, physicians, lawyers, professors of religion, etc.
- n. One who, or that which, resembles another in distinctive qualities or traits of character.
- transitive v. To make a brother of; to call or treat as a brother; to admit to a brotherhood.
from The Century Dictionary and Cyclopedia
- n. A male person, in his relation to another person or other persons of either sex born of the same parents; a male relative in the first degree of descent or mutual kinship: used also of the lower animals: the converse of sister. See brother-in-law and half-brother.
- n. A male person in his relation to any other person or persons of the same blood or ancestry; a member of a common family or race in his relation to all other members; in the plural, all members of a particular race, or of the human race in general, as regards each other.
- n. One of two or more men closely united without regard to personal kinship, as by a common interest; an associate; one of the same rank, profession, occupation, or belief, especially in law, religion, or organized charity.
- n. Specifically, as a translation of friar, a member of a mendicant order.
- n. In the plural form brethren, the designation of several Christian organizations, derived from the fact that the title was used by the primitive Christians in speaking of themselves; specifically, a sect of German Baptists, more popularly known as Dunkers.
- n. A member of a religious congregation whose members do not receive the priesthood, but devote themselves to teaching or good works; also, a lay member of a community having priests.
- n. Figuratively, one who resembles another in manners or disposition.
- n. Often abbreviated bro., plural bros.
- n. [The plural form brethren is not now used in the sense of male children of the same parents, but only in the wider meanings of the word brother.]
- Bearing a fraternal relation in a general sense; of the character of a brother: as, a brother man or magistrate.
- To consider or treat as a brother; address as a brother.
- To relate as brothers; make kin.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (Roman Catholic Church) a title given to a monk and used as form of address
- n. a close friend who accompanies his buddies in their activities
- n. a male with the same parents as someone else
- n. used as a term of address for those male persons engaged in the same movement
- n. a male person who is a fellow member (of a fraternity or religion or other group)
Middle English, from Old English brōthor.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English brother, from Old English brōþor, from Proto-Germanic *brōþēr (cf. West Frisian broer, Dutch broeder, German Bruder, Danish broder), from Proto-Indo-European *bʰréh₂tēr (cf. Irish bráthair, Latin frāter, Ancient Greek φράτηρ (phratēr), Tocharian A pracar, B procer, Russian брат (brat), Lithuanian brolis, Persian برادر (barādar), Sanskrit and Hindi भ्रातृ (bhrātṛ)). (Wiktionary)