A half brother sharing the same mother but having a different father.

A male sibling sharing a single parent, as distinguished from a full brother or brother-german, from a step-brother, or from a brother-like figure such as a blood brother.

Alternative spelling of half brother

younger brother (used especially by children, or by parents in speaking to their children)

A sibling's older brother used especially by children or by parents in speaking to their children. / (figurative) Something that is bigger in comparison. / Alternative form of Big Brother

Unwarranted, invasive, and discreet surveillance, especially of a people by its government / Any omnipresent figurehead representing oppressive control

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

(idiomatic) A large number of people; most people.

(idiomatic) A large number of people; most people.

A sibling (whether male or female) having two common parents.