A woman who can get married but is not married is called "the boudoir stays in the boudoir".
"Book of Rites Quli Shang": "A woman promises to marry, and her words are full."
Women's bar mitzvah is several years earlier than men's. When they are fifteen years old, they will hold a rite of passage. This rite of passage is called "gift", and "gift (jοand)" is a hairpin, which shows that they are adults. Let's take a "word" at this time. After the ceremony, the woman can get married. However, during the period after the ceremony and before marriage, this adult woman's identity is called a boudoir woman.