English Dictionary

blood brother

noun

An unrelated male considered to share a brother-like relationship established by a ceremonial sharing of blood in some cultures.

They have been best friends since childhood and consider each other as blood brothers.

意味（1）

An unrelated male considered to share a brother-like relationship established by a ceremonial sharing of blood in some cultures.

意味（2）

(by extension) An unrelated male considered to share such a strong relationship generally.

意味（3）

A brother by blood: a brother-german or half-brother, as distinguished from step-brothers.