Improve این ایس ایف meaning in English

Is there any meaning of the word این ایس ایف that needs an edit? Please click that meaning to rewrite it.

nsf

Is there any meaning of the word این ایس ایف that needs to be removed from the list? Please click that meaning to mark it for deletion.

nsf

Do you want to add a new meaning, definition, and a sentence of the word این ایس ایف? Please feel free to add.