As their is not a excat defination for bestfriend but their is some words to make u r friend best in the whole world.
i am going out with a girl and her best friend is a guy. They both have knows each other since there were born. She claims there just best friends. Is this possible?
A best friend means that you can feel its feeling, you needn't contract with it too much times, but when something good or bad happened, it will be the first person you want to enjoy. So it does.
FRIEND the word itself having the great value and it is always best. And i don't why people add the word "best" to the best, valuable, great word "friend"...