its "best friend"

Correction : "What do "Best Friend" mean ?" Best friend means the one among all our friends whom we consider the closest :) There isn't a single definition of best friend. It varies from person to person. In Hindi : Best Friend ka matlab hota hai sabse accha dost. Hummare kai saare dost hote hain. Unme jo humaare sabse kareeb ho aur, use hum best friend ka darja dete hain :)