“闺”旧时指妇女居住的地方。 In the old days, ”闺“ referred to the place where women lived. “闺蜜”这个词原来写作”闺密“， 指”闺中密友“，是女性对亲密女友的称呼，现写成”闺蜜“。 "The word was originally written as "闺密", referring to a woman's intimate girlfriend, and is now written as "闺蜜".