Brother
Part of speech: noun
Definition: Son of the same parents as another person. A male child descended from the same parents. A male having at least one parent in common with another (see half-brother, stepbrother). A male fellow member of a religious community or church. Someone who is a peer, whether male or female. A black male.
Part of speech: verb
Definition: To treat as a brother.
Example sentence: If you wish to succeed in life, make perseverance your bosom friend, experience your wise counselor, caution your elder brother, and hope your guardian genius.
Buddy
Part of speech: verb
Definition: To assign a buddy, or partner.
Part of speech: noun
Definition: A friend or casual acquaintance.A partner for a particular activity.An informal and friendly address to a stranger; a friendly placeholder name for a person one does not know.
Example sentence: My mother's career was over at 40 but she was still trying to be everyone's buddy, always smiling for the cameras.