An older male, often referring to a friend or acquaintance from one's youth.

A member of a specific group, often used in British context to refer to someone from a particular school.

विशेष समूह का सदस्य

English Usage: As an old boy of that prestigious school, he has many connections.

Hindi Usage: उस प्रतिष्ठित स्कूल का पुराना लड़का होने के नाते, उसके पास कई संबंध हैं।