vt to make a brother of; to call or treat as a brother; to admit to a brotherhood.
2. brother ·noun one who, or that which, resembles another in distinctive qualities or traits of character.
3. brother ·noun a male person who has the same father and mother with another person, or who has one of them only. in the latter case he is more definitely called a half brother, or brother of the half blood.
4. brother ·noun one related or closely united to another by some common tie or interest, as of rank, profession, membership in a society, toil, suffering, ·etc.;
used among judges, clergymen, monks, physicians, lawyers, professors of religion, ·etc.