Meaning

• Son of the same parents as another person.

• A male having at least one parent in common with another (see half-brother, stepbrother).

• A male fellow member of a religious community, church, trades union etc.

  "I would like to thank the brother who just spoke."

• A form of address to a man.

  "Listen, brother, I don't know what you want, but I'm not interested."

• A black male.

• Somebody, usually male, connected by a common cause or situation.

• Someone who is a peer, whether male or female.

Meaning

• To treat as a brother.

Meaning

• Expressing exasperation.

  "We're being forced to work overtime? Oh, brother!"