The white square eight-spoked asterisk is inside the green button frame. It is the eight-spoked asterisk, also called the asterisk , and is used with "*". In mathematics, it is used as a "
✖️ multiplication sign". In Papers it is marked in the upper left or upper right corner of the word, indicating the annotation explanation. On the Internet, it will be used as a "mosaic" to block sensitive words and uncivilized speech. Related to it is the multiplication sign, the
➗ division sign, the # hash sign.