Definitions

1. noun

A male sibling or a male relative of the same family.

“He is my older brother.”

2. noun

A male friend or associate.

“My brother in the military helped me out.”

3. noun

A member of a fraternity or a male member of a religious order.

“He was a brother of the fraternity.”

4. verb

To share or give something to someone.

“Can you brother me a piece of cake?”