A Quick and Simple Dictionary

Brother

1. Noun.  Title of respect for an adult male member of a religious or fraternal order.
2. Noun.  Formal title for any male member of a religious or fraternal organization.
3. Noun.  An informal title used as part of another moniker:.
4. Noun.  Son of the same parents as another person.
5. Noun.  A male child descended from the same parents.
6. Noun.  A male having at least one parent in common with another (see half-brother, stepbrother).
7. Noun.  A male fellow member of a religious community, church, trades union etc.
8. Noun.  Someone who is a peer, whether male or female.
9. Noun.  (African American Vernacular English) A black male.
10. Verb.  (transitive) To treat as a brother.