All brother synonyms
broth·er
B b noun brother
- relative — a person who is connected with another or others by blood or marriage.
- twin — either of two children or animals brought forth at a birth.
- relation — an existing connection; a significant association between or among things: the relation between cause and effect.
- kin — a person's relatives collectively; kinfolk.
- blood brother — A man's blood brother is a man he has sworn to treat as a brother, often in a ceremony which involves mixing a small amount of their blood.