This is the 190th most frequent Urdu word.
بی
The Urdu word "بی" (Bi) is a term of respect used for women, meaning "lady" or "madam."
Here, 'بی' is used as part of a proper name 'بی نشو' to identify someone.
میری بہن بی نشو کا بہت اچھا دوست ہے۔
My sister Bi Nishu is a very good friend.
In this sentence, 'بی' is used as an affectionate prefix to refer to a respected elder, 'دادی' (grandmother).
میں بی دادی کے قصے بہت شوق سے سنتا ہوں۔
I listen to Grandma Bi's tales with great interest.
Here, 'بی' serves as a shortened or informal command to instruct someone to proceed towards something or someone.