闺蜜

Traditional form:

閨蜜

Pinyin (reading):

guīmì

Definitions:

• (coll.) (a woman's) close female friend
• bestie
• (originally written 閨密／闺密, an abbr. for 閨中密友／闺中密友)

Characters:

• 闺 - women's quarters; lady's apartment
• 蜜 - honey, nectar; sweet

Traditional characters:

• 閨 - women's quarters; lady's apartment
• 蜜 - honey, nectar; sweet